I've been tracking down an issue with comments. In the Atahualpa theme, you can have comments on pages, but it only allows a reply on the first comment.
Digging my way thru the code, I came to function get_comment_reply_link and there are two lines that I wonder about they are right after the 'extract($args, EXTR_SKIP);' and are:
$comment = get_comment($comment);
$post = get_post($post);
now it seems to me that the second line should be
$post = get_post($comment->comment_post_ID);
i.e. grab the post from the post pointed to by the comment.
Am I missing something? (p.s. this fixes my issue and allows all page comments to be replied to.