Change needed to get correct class markup

It appears that, in advf-forum-post.tpl.php, the line (#51 in my version) needs to be changed from

<div class="<?php print $postclass ?> forum-comment forum-comment-<?php print $row_class; print $comment->new ? ' comment-new forum-comment-new' : ''; ?>">

to

<div class="<?php print $postclass ? $postclass . ' ' : ''; ?>forum-comment<?php print $row_class ? ' forum-comment-' . $row_class : ''; print $comment->new ? ' comment-new forum-comment-new' : ''; ?>">

in order to generate the correct class markup (especially because $row_class is often an empty string).

'Though I've made multiple CSS mods to use this with the Tapestry theme(s), I like the module and am including it in 3 under-development sites.

Thanks for the nice work ... it's appreciated.