function leonhere_new_comments($num,$name){
	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,comment_author_email, SUBSTRING(comment_content,1,30) AS com_excerpt FROM $wpdb->comments LEFT OUTER JOIN $wpdb->posts ON ($wpdb->comments.comment_post_ID = $wpdb->posts.ID) WHERE comment_approved = '1' AND comment_author != '$name' AND comment_type = '' AND post_password = '' ORDER BY comment_date_gmt DESC LIMIT ".$num; 
	$comments = $wpdb->get_results($sql); 
	$output = $pre_HTML; 
	$output .= "n<ul class='comments'>"; 
	foreach ($comments as $comment) { 
		$output .= "n<li><div class='gavatar'>".get_avatar( $comment, 43,'',$comment->comment_author)."</div><div class='comments-con'><a href='".get_permalink($comment->ID)."#comment-" . $comment->comment_ID . "'>".strip_tags($comment->comment_author)."</a>".strip_tags($comment->com_excerpt) ."</div></li>"; 
	} 
	$output .= "n</ul>"; 
	$output .= $post_HTML; 
	$output = convert_smilies($output);
	echo $output;
}

<?php leonhere_new_comments(10,'');?>