global $wpdb;
$sql = "SELECT DISTINCT ID, post_title, post_password, comment_ID, comment_post_ID, comment_author, comment_date_gmt, comment_approved, comment_type,comment_author_url, SUBSTRING(comment_content,1,40) AS com_excerpt FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) WHERE comment_approved = '1' AND comment_type = '' AND post_password = '' ORDER BY comment_date_gmt DESC LIMIT 5";

$comments = $wpdb->get_results($sql);
$output = $pre_HTML;
$output .= "\n

";
foreach ($comments as $comment) {
$output .= "\n
• ".strip_tags($comment->comment_author) .": " . "ID)."#comment-" . $comment->comment_ID . "\" title=\"on ".$comment->post_title . "\">" . strip_tags($comment->com_excerpt)."
";
}
$output .= "\n

";
$output .= $post_HTML;
echo $output;
?>