Table in a Loop

Hey All

Im trying to create a Loop that sorts the posts in a table with 3 columns.
My get_post_custom_values is a fuld link to a thumbnail. It works great if i put it in a “normal loop” without the table an foreach looping. So I know it isnt the link thats broking.

<table border="1"  height="100%">
<?php
$posts = get_posts('category_name=cases&showposts=15');
$postsPerLine = 3;
$currentPostNumber = 0;

foreach ($posts as $post) :
	if ($currentPostNumber == 0) {
		echo '<tr>';    }                        ?>    <td>

<a href="<?php the_permalink() ?>" title="<?php the_title(); ?>">

<img src="<?php echo $values = get_post_custom_values("thumb");?>" alt="<?php the_title(); ?>" class="thumb" />

</a>

<?php the_excerpt(); ?>

</td>
	<?php
	$currentPostNumber++;    if ($currentPostNumber >= $postsPerLine) {
	$currentPostNumber = 0;
	echo '</tr>';    }  

	endforeach;  ?>
    </table>

Any ideas??