the_tags() Not Working

<?php get_header(); ?>
<?php get_sidebar(); ?>

<div id="content">

<?php if ($posts) : foreach ($posts as $post) : start_wp(); ?>

<div class="post">

<div class="post-title"><em><?php the_time('F j, Y g:i A'); ?></em><?php the_category(', ');?></div>

<p class="post-info"><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link: <?php the_title(); ?>"><?php the_title(); ?></a>
<?php if(function_exists('wp_print')) { print_link_image(); } ?>
<?php if(function_exists('wp_email')) { email_link_image(); } ?>
</p>

<div class="post-content">
	<?php the_content(); ?><br>
	<?php the_tags(); ?><br>
	<?php if(function_exists(wp23_related_posts)) : wp23_related_posts(); endif; ?>

	<!--
		<?php trackback_rdf(); ?>
	-->
	<?php wp_link_pages(); ?>
</div>

<div class="post-footer"><?php comments_popup_link(__('No Comments'), __('1 Comment'), __('% Comments')); ?>  <?php edit_post_link('Edit'); ?></div>

<center><?php if(function_exists(adsense_deluxe_ads)) : adsense_deluxe_ads('Banner'); endif; ?></center><br><br>

<?php comments_template(); // Get wp-comments.php template ?>

</div>

<?php endforeach; else: ?>
<p><?php _e('Sorry, no posts matched your criteria.'); ?></p>
<?php endif; ?>
<p align="center"><?php posts_nav_link() ?></p>
</div>
<?php  get_footer();?>