Eğer başka div sorunun yoksa bu şekilde olması lazım. Ayrıca normalde de footer div'in kapatılmamış.

Boyutları sabitlemeyide css ile yapabilirsin. Takribi bir boyut belirmelisin.

<?php get_header(); ?>

<div id="content">

    <div id="homepage">
    
        <div id="homepagetop">
        
            <div class="featuredtop">

                <!--This section is where the Featured Content plugin is called.-->
                
                <?php include (ABSPATH . '/wp-content/plugins/featured-content-gallery/gallery.php'); ?>
            
            </div>
            
        </div>
                    
    <div id="homepageleft">
        
            
                
            <div class="hpfeatured">
            <h3>Güzellik</h3>
                <?php $recent = new WP_Query("cat=12&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
                <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>        
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
    <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Tüm Haberler</a></b>
                
            </div>    
                  </div>
				  </div>

                        <div id="homepageright">
            <div class="hpfeatured">
            <h3>Moda</h3>    
            <?php $recent = new WP_Query("cat=14&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
            <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
               <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
            <?php else: ?>
                <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>

<?php endif; ?>    
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Tüm Haberler</a></b>
                                    
            </div>    
                  </div>
				  </div>

                        <div id="homepageleft">    
            <div class="hpfeatured">
            <h3>GÜZELLİK</h3>
            <?php $recent = new WP_Query("cat=20&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
            <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
            <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>    
                <b><a href="#" rel="bookmark">Tüm Haberler</a></b>
                
            </div>    
                  </div>
				  </div>

                       <div id="homepageright">
            <div class="hpfeatured">
            <h3>GÜZELLİK</h3>    
                <?php $recent = new WP_Query("cat=12&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
                <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                       <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Tüm Haberler</a></b>
                        
            </div>    
                  </div>
				  </div>

        <div id="homepageleft">        
            <div class="hpfeatured">
            <h3>GÜZELLİK</h3>
            <?php $recent = new WP_Query("cat=12&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
            <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                       <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                   <b><a href="#" rel="bookmark">Tüm Haberler</a></b>
                
        
            </div>    
                  </div>
				  </div>

            
    <div id="homepageright">
                    
            <div class="hpfeatured">
            <h3>GÜZELLİK</h3>
            <?php $recent = new WP_Query("cat=12&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
            <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                       <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Kategorinin diğer yazıları</a></b>
                
                        
            </div>    
                  </div>
				  </div>
                
    <div id="homepageleft">    
            <div class="hpfeatured">
            <h3>GÜZELLİK</h3>                    
                <?php $recent = new WP_Query("cat=12&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
                <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                       <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Kategorinin diğer yazıları</a></b>
                
            
            </div>    
                  </div>
				  </div>
                
    <div id="homepageright">            
            <div class="hpfeatured">
            <h3>GÜZELLİK</h3>
            <?php $recent = new WP_Query("cat=12&showposts=2"); while($recent->have_posts()) : $recent->the_post();?>
            <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                       <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(80, ""); ?>
                <div style="border-bottom:1px dotted #94B1DF; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Kategorinin diğer yazıları</a></b>
                                        
            </div>    
                  </div>
				  </div>
                     
        <div id="homepagebottom">
        <div class="hpbottom">
            <h3>TEST</h3>                
                <?php $recent = new WP_Query("cat=10,20,8,22,17,100,13,16,18,12,14,19&showposts=20"); while($recent->have_posts()) : $recent->the_post();?>
                <?php if( get_post_meta($post->ID, "thumbnail", true) ): ?>
                    <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;" src="<?php echo get_post_meta($post->ID, "thumbnail", true); ?>" alt="<?php the_title(); ?>" width="70" height="70"/></a>
                <?php else: ?>
                       <a href="<?php the_permalink() ?>" rel="bookmark"><img style="float:left;margin:0px 10px 0px 0px;"  src="<?php bloginfo('template_url'); ?>/images/thumbnail.png" alt="<?php the_title(); ?>" /></a>
                <?php endif; ?>                
                <b><a href="<?php the_permalink() ?>" rel="bookmark"><?php the_title(); ?></a></b>
                <?php the_content_limit(350, "[Devamını oku]"); ?>
                    
                <div style="border-bottom:1px dotted #2255AA; margin-bottom:10px; padding:0px 0px 10px 0px; clear:both;">
                <?php endwhile; ?>
                <b><a href="#" rel="bookmark">Kategorinin diğer yazıları</a></b>
            
            </div>
        
        </div>
		</div>
</div>
        
    
    
<?php include(TEMPLATEPATH."/sidebar.php");?>
        
</div>

<!-- The main column ends  -->

<?php get_footer(); ?>