Listing recent post_thumbnails

Hi everyone – I’m trying to list the most recent posts with their corresponding post_thumbnails() images… I got it working with:

<div class="recent_thumbs">
<h1>Posts you might have missed</h1>
<?php
global $post;
$the_newest = get_posts('numberposts=8');
 ?>
<?php foreach($the_newest as $post) :
setup_postdata($post);	?>
<div class="post">
<div class="recent_thumbs_image"><a href="<?php the_permalink() ?>"><?php the_post_thumbnail('list-post-thumbnail'); ?></a></div>
<h2 class="posttitle"><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a></h2>

</div>
<?php endforeach; ?>

</div>

But now the comments for each post (i’m calling them from the sidebar.php template) are the same!

Is there any other way to list the recent post_thumbnails in the format i’ve defined in functions.php?

Any help much appreciated!

-Alex