<div id="sidebar">
<?php if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar() ) : ?>

    <div id="sbitem">
        <h2>Content Tags</h2>
        <div id="tags">
        <p><?php wp_tag_cloud('smallest=10&largest=14&orderby=name'); ?></p>
        </div>
    </div>
    
    <div id="sbitem" class="rss_links">
        <h2>Stay updated via RSS</h2>
        <ul>
            <li><a href="<?php bloginfo('rss2_url'); ?>" title="Full content RSS feed">Content RSS</a></li>
            <li><a href="<?php bloginfo('comments_rss2_url'); ?>" title="Full comments RSS feed">Comments RSS</a></li>
        </ul>
    </div>
<?php endif; ?>
</div>

İşte sidebar.php'nin kodu . Yalnız ben bunu yukarıda belirttiğim gibi widgets aracığı ile aktif ettim ...