I just wanted to post some more information in case someone stumbles across this post (or if you two are still interested).
The reason that you do not see the post count show up on the main page and the individual post page is because of the way the index and single.php theme files are programmed. The bar is called in two different locations.
In my instance I had to add the Facebook code in my loop.php file (for my main page to load with all the posts) and single.php (for the specific post), and since I wanted to keep the theme bubble it ended up looking like this:
<span class="comment">
<fb:comments-count href="<?php echo get_permalink($post->ID); ?>"></fb:comments-count> Comments
</span>
If you want to see an example you can check out http://bifty.com and click on any post.
Hope that helps someone.
