BuddyPress.org

I am having a hell of a time getting my buddypress avatars to show in some themes im trying to use. Ive found the code to add the avatars, but I cant seem to find where to add it to comments.php… can anyone help. The current code looks like this:

<?php
if ($comments && count($comments) – count($trackbacks) > 0) {
// for WordPress 2.7 or higher
if (function_exists(‘wp_list_comments’)) {
wp_list_comments(‘type=comment&callback=custom_comments’);
// for WordPress 2.6.3 or lower
} else {
foreach ($comments as $comment) {
if($comment->comment_type != ‘pingback’ && $comment->comment_type != ‘trackback’) {
custom_comments($comment, null, null);
}
}
}
} else {
?>

<?php
}
?>

The theme is the Plano-Black theme found on the wordpress.org site. Any help is greatly appreciated.