Your site should show the rss address somewhere so that viewers can subscribe and add your blog to their rss readers, or you can import your blog posts from your blog to say another one you may open in the future using a plugin like wp-autoblog for instance.

If you submit your blog to the dynamic feedlist directories like I and Luke have (www.gayxxxblogs.com www.gayblogfinder.com or www.gaysexblogs.com) we use your rss url to import your site and the directories automatically show the newest post titles linked to your blog everyday.

I read that you dived in and edited a lot out of a theme, I'm guessing you managed to delete something that looked like this from somewhere on the sidebar:

<h2>Meta</h2>
<ul class="linklist">
<li><a href="feed:<?php bloginfo('rss2_url'); ?>" title="<?php _e('Syndicate this site using RSS'); ?>"><?php _e('<abbr title="Really Simple Syndication">RSS</abbr>'); ?></a></li>

Just adjust the ul class to whatever the theme is using in the CSS to style the links area.