Post meta question

I’m trying to fine tune a custom theme made by others. The theme is based on twenty ten but has a lot of differences.

I’m trying to get the little bit of meta data at the bottom of each post to be the same as on a basic twenty ten theme post. For example:
http://www.gauchezco.com/gauchezco-blog/

At the bottom of each post is ” Posted in Category | Leave a comment”

Leave a comment is replaced by “# of comments” if comments have been left.

I am doing this on an offline copy of the site on my localhost so unfortunately I cannot show what I have. But I have managed to get the “Posted in category working. The part I’m having trouble with is getting “Leave a comment” link (which changes to “# of comments” link if comments have been left.

Here is the code I have. It shows the number of comments , but it doesn’t link to the enter a comment page. Also, when there are no comments it displays shows “No comments” instead of “Leave a comment”.
Here is the code I have in a file called post-meta-lower.php:
<div class=”post-meta”>
<p>
Posted in <?php the_category(‘, ‘) ?>
<?php the_tags(‘
Tagged ‘, ‘, ‘, ”) ?> | <?php comments_number() ?>
</p>
</div>

Can anyone offer any advice on how I might get this functionality enabled?

TIA for any help!