show comments on homepage

Hello. I’m using a custom query on my homepage to bring back the latest post. I need to bring back the latest 3 comments from the latest post but nothing is displaying. Current code:

<div class="main">

			<?php
            $temp = $wp_query;
            $wp_query= null;
            $wp_query = new WP_Query();
            $wp_query->query('showposts=1'.'&paged='.$paged);
            ?>
            <?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?>
              <article class="post">
	    		<header  <?php post_class() ?> id="post-<?php the_ID(); ?>">
	    			<h1><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title_attribute(); ?>"><?php the_title(); ?></a></h1>
                    <small><time datetime="<?php the_time('Y-m-d') ?>" pubdate><?php the_time('F jS, Y') ?></time> by <?php the_author_posts_link(); ?>.</small>
                </header>
                <div class="entry">
                <?php the_excerpt(); ?><?php wp_list_comments('type=comment&callback=mytheme_comment'); ?>

                </div>
              </article>
              <!-- end .post -->

    	</div>
    	<!-- end .main -->

			<aside class="secondary">
		    	<section class="mod">
		    		<h3>Recent Comments</h3>
                    <ul class="commentlist">
                    <?php wp_list_comments('type=comment'); ?>
                    </ul>

             <?php endwhile; ?>

            <?php $wp_query = null; $wp_query = $temp;?>

I’ve also tried get_comments and various plugins but can’t get anything to pull through. Any idas? Thanks