If you view the source code on my website, loneplacebo.com, you'll notice that only the comment
<!--stats_footer_test-->
is shown above the . The plugin doesn't seem to be adding the necessary javascript code to track my site's traffic. I tried deactivating and reactivating the plugin to no avail.
<?php wp_footer(); ?>above the closing body tag in your footer.php – MartinJJ Jun 17 '11 at 8:56