Hey I installed feedsmith which is working fine, although I've got this in the header <li><a href="<?php bloginfo('rss2_url'); ?>">RSS</a></li>" So it makes a page with www.mysite.com/feed/ that / means the feed won't go to feedburner it will just be www.mysite.com/feed So I don't know how to edit this so it gets rid of the extra / thanks!
Just write the correct url into your header instead of <?php bloginfo('rss2_url'); ?> A little dirty, though.
I think if you "burned" your feed at FeedBurner and using the plugin then www.mysite.com/feed should redirect to the FeedBurner feed. Did you try it?
If you are using the feedsmith plugin, the /feed/ URL will be redirected to your Feedburner URL. If you want to be sure, go to your theme editor and change the URL to your Feedburner URL.