No, not really...but try this little hack.
In details.php find: "comment_text" => format_text($comment_row[$i]['comment_text'], $config['html_comments'], $config['wordwrap_comments'], $config['bb_comments'], $config['bb_img_comments']),
Replace with: "comment_text" => format_text($comment_row[$i]['comment_text'], (($comment_row[$i]['user_level'] == ADMIN) ? 1 : $config['html_comments']), $config['wordwrap_comments'], $config['bb_comments'], $config['bb_img_comments']),
This should show HTML on the comments posted by admin