How to activate comments- custom design

Hello,
Please help me enable comments on our site.

I’ve inherited a website with a custom wordpress design and I’ve spent hours combing the archives for help– no luck. All the settings are set for comments, but nothing shows up.

http://www.vancouverfruittree.com

Here’s the page.php info:

<?php get_header(); ?>

<!-- start page -->
<div id="page">
	<!-- start content -->
	<div id="content">
<!-- Start of  Blog Entry -->
							<?php
								if (have_posts())
								{
										 while (have_posts())
										 {
										 the_post();
							?>
	<	<div id="page-<?php echo the_ID();?>" class="<?php echo $alternate;?>">
													<h2><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>
													<!--
													<h4><a href="<?php the_author_url(); ?>"><?php the_author() ?></a> at <?php the_date() ?> : <?php the_time() ?>  <?php edit_post_link(__('Edit This')); ?></h4>
													-->
													<?php if ( get_post_meta($post->ID, 'heading', true) )
													{
													?>
														<h4><?php echo get_post_meta($post->ID, "heading", $single = true); ?></h4>
													<?php
													}
													?>													

													<div class="post-body">
													<?php the_content('Read the rest of this entry &raquo;'); ?>
													</div>
										</div>
							<?php
										 }
							?>

							<?php
								}else{
								// No Post Found
								?>

								<div id="errobox" style="padding-left:10px">
									<h2 class="center">404 Not Found</h2>
									<p class="center">Sorry, but you are looking for something that isn't here.</p>
								</div>	

								<?php
								}
							?>
	<!-- end of content -->
	</div>
	<?php get_sidebar(); ?>
</div>
<div class="postline"></div>

<?php comments_template(); ?>

<?php endwhile; endif; ?>

<!-- end of start page -->
<?php get_footer(); ?>
<?php comments_template(); ?>