Threaded Comments

I’m trying to use threaded comments on my theme. This is my loop to display the comments

<ul class="commentlist">
<?php foreach ($comments as $comment) : ?>
<li id="comment-<?php comment_ID() ?>">

<div class="comment">
	<div class="commenter">
	<span class="gravatar"><?php echo get_avatar($comment); ?></span>
<br />
		<span class="cm_author"><?php comment_author_link() ?></span> <br />
		<span class="cm_date"><?php comment_time('d F y') ?></span> <br />
		<span class="cm_edit"><?php edit_comment_link('edit','&nbsp;&nbsp;',''); ?></span> <br />
	</div>
	<div class="comment_content"><?php comment_text() ?></div>
	<?php comment_reply_link(array('depth' => $depth, 'max_depth' => $args['max_depth'])) ?>
</div>
<hr class="spacer" />

<?php if ($comment->comment_approved == '0') : ?>
<em>Your comment is awaiting moderation.</em>
<?php endif; ?>
</li>
<?php endforeach; /* end for each comment */ ?>
</ul>

The reply link doesn’t show up. I’ve also got wp_enqueue_script(‘comment-reply’); in my header but nothing happens.

The reply link doesn’t even show up on the comments.