Cual es el codigo de minuatura?

<div id="miniatura"><?php
$files = get_children("post_parent=$id&post_type=attachment&post_mime_type=image");
if($files){
        $keys = array_keys($files);
        $num=$keys[0];
        $thumb=wp_get_attachment_thumb_url($num);
        print "<a href='".get_permalink()."' title='".get_the_title()."'><img src='$thumb' class='thumbnail' width='32' height='32' alt='".get_the_title()."' /></a>";
}else{
print "<a href='".get_permalink()."' title='".get_the_title()."'><img src='default.png' class='thumbnail' width='90' height='90' alt='' /></a>";
}
?><!-- aqui se muestra (termina) la miniatura --></div>

<div class="post-thumb">  
<a href="<?php the_permalink() ?>" rel="bookmark"><img src="<?php echo get_thumbnail($post->ID);?>" width="110" height="100"  
alt="<?php the_title(); ?>">  </a>
</div>