WordPress Yazı Resmi (Thumbnail) yardım.

<?php get_header();?>

<?php
global $post;

$blog_page = get_option('corbiz_blog_page');
$blog_page_id = get_page_by_title($blog_page);
$heading_image = get_post_meta($blog_page_id->ID,"_heading_image",true);
$bgtext_heading_position = get_post_meta($blog_page_id->ID,"_bgtext_heading_position",true);
$page_short_desc = get_post_meta($blog_page_id->ID,"_page_short_desc",true);
?>

<div id="pageheading">
<!--Page Heading Image -->
<img src="<?php echo $heading_image ? $heading_image : get_template_directory_uri().'/images/page-heading1.jpg';?>" alt="" />
<!-- page heading description end-->

<?php if ($page_short_desc !="") { ?>
<div id="page-slogan">
<h4><?php echo $page_short_desc;?></h4>
<div class="clear"></div>
</div>
<?php } else { ?>
<!-- page heading title-->
<div id="page-title" class="col_13">
<h3><?php echo $blog_page;?></h3>
</div>
<!-- page heading title end-->

<!-- page heading description-->
<div id="page-desc" class="col_23 last">
<?php $enable_breadcrumbs = get_option('corbiz_enable_breadcrumb');?>
<?php if ($enable_breadcrumbs =="true") { ?>
<?php if ( function_exists( 'breadcrumbs_plus' ) ) breadcrumbs_plus(); ?>
<?php } ?>
</div>


<?php } ?>

</div>

<div class="clear"></div>
</div>
</div>
<div class="round-wrapper-bottom"></div>
<?php $heading_shadow = get_option('corbiz_heading_shadow');?>
<img src="<?php echo get_template_directory_uri();?>/images/shadow/<?php echo $heading_shadow ? $heading_shadow : "shadow1.png";?>" alt="" class="bottom-shadow"/>
</div>
</div>
</div>
</div>


<div class="clear"></div>

<!--main content-->
<div class="center">
<div class="maincontent">
<div class="pagecontent col_23<?php if ($page_sidebar_position == "Left") echo ' last';?>">
<?php if (have_posts()) : while (have_posts()) : the_post();?>
<h3><?php the_title();?></h3>
<?php the_content();?>
<?php endwhile;endif;?>

<div class="clear"></div>

<!-- Author Box Start //-->
<?php $author_box = get_option('corbiz_author_box');?>
<?php if ($author_box != "true") { ?>
<div id="authorbox">
<div class="blockavatar">
<?php if (function_exists('get_avatar')) { echo get_avatar(get_the_author_meta('user_email'), '48'); }?>
</div>
<div class="detail">
<h4><?php echo __('About ','corbiz');?><a href="<?php the_author_meta('url') ?>"><?php the_author_meta('display_name'); ?></a></h4>
<p><?php the_author_meta('description'); ?></p>
</div>
<div class="clear"></div>
</div>
<?php } ?>
<!-- Author Box End //-->

<div class="clear"></div>
<?php $disable_comment = get_option('corbiz_disable_comment'); ?>
<?php
if ($disable_comment !="true") {
comments_template('', true);
}
?>

</div>
<?php wp_reset_query();?>
<?php get_sidebar();?>

</div>
</div>

<?php get_footer();?>

<img class="left" align="alignleft"

class="left" align="alignleft"

class="alignleft"

<?php $image_url = wp_get_attachment_image_src( get_post_thumbnail_id(), 'full'); if ( has_post_thumbnail() ) { ?>
<img class="alignleft" src="<?php echo $image_url[0]; ?>" width="150" height="150" alt="<?php the_title(); ?>"/>
<?php } ?>