Sowing only posts with comments

Hi,

I’m trying tonig a page that will show only posts that have comments. I’ve tried the following, but it’s not working. Any ideas?

Thanks

<?php get_header(); ?>

<?php $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
query_posts( 'cat=-8378, -13444&orderby=comment_count&paged=' . $paged );
 while (have_posts()) : the_post();
 if(  get_comments_number() <1) the_post(); ?>
<div class="new-wrapper">
	<article <?php post_class(); ?>>
<div align="center">
		<header class="entry-header">
			<h1 class="entry-title"><a href="<?php the_permalink(); ?>" rel="archive"><?php the_title(); ?>
<?php if (get_comments_number() > 0): printf(' *');
 endif;?></a>
</h1>
			</div>
		</header>