I added the code in a block instead of the template. I keep it out of admin, node add/edit pages etc. using the block admin interface.

Used REQUEST_URI instead of node_url as in the feedburner site example. Seems to work OK so far.

<script src="http://feeds.feedburner.com/~s/YourFeedAddress?i=http://www.example.com<?php print $_SERVER['REQUEST_URI'] ?>" type="text/javascript" charset="utf-8"></script>

REQUEST_URI may display different info depending on your server. But it works in my lighttpd setup.

Joe