<?php
function get_recent_comments($limit = 10) {
     global $wpdb, $tablecomments, $tableposts;
     global $siteurl, $blogfilename;
     $comments = $wpdb->get_results("SELECT ID, comment_ID, post_title, comment_author, comment_date FROM $tableposts, $tablecomments WHERE $tableposts.ID=$tablecomments.comment_post_ID ORDER BY $tablecomments.comment_date DESC LIMIT $limit");
     $output = '';
     function sort_by_ID($a, $b){
          if( $b->ID == $a->ID ){
               return $b->comment_ID - $a->comment_ID;
          }
          return $b->ID - $a->ID;
     }
     usort($comments, "sort_by_ID");
     $new_post_ID = -1;
     foreach ($comments as $comment) {
          if ($comment->ID != $new_post_ID) { // next post
               if ($new_post_ID != -1) { $output .= "\t</ul>\n</li>\n"; } 
               $post_title = stripslashes($comment->post_title);
               $permalink = "$siteurl/$blogfilename?p=$comment->ID&amp;c=1";
               $output .= "<li>";
               $output .= "<a href=\"$permalink\">$post_title</a>\n";
               $output .= "\t<ul>\n";
               $new_post_ID = $comment->ID;
          }
          $comment_date = mysql2date('m/d@H:i', $comment->comment_date);
          $comment_author = stripslashes($comment->comment_author);
          $output .= "\t\t<li>$comment_date - $comment_author </li>\n";
     }
     $output .= "\t</ul>\n</li>\n";
     echo $output;
}
?>