< ?php 
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,1,30) 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 10"; 
 
$comments = $wpdb->get_results($sql); 
$output = $pre_HTML; 
 
foreach ($comments as $comment) { 
$output .= "\n<li>". "<a href=\"" . get_permalink($comment->ID)."#comment-" . $comment->comment_ID . "\" title=\"on ".$comment->post_title . "\">".strip_tags($comment->comment_author)."</a>" .": " .strip_tags($comment->com_excerpt)."</li>"; 
} 
 
$output .= $post_HTML; 
echo $output; 
?>