How to use this plugin and comments?

I don’t know if it helps, but this is my index.php – perhaps changing something in this code would help…

<?php get_header();?>
<div id="main">
	<div id="content">
	    <?php if (have_posts()) : while (have_posts()) : the_post(); ?>
	        <div class="post" id="post-<?php the_ID(); ?>">
            <h2 class="title"><a>" rel="bookmark"><?php the_title(); ?></a></h2>
        <div class="meta">
		<p>
                <?php the_time('M') ?>
                <?php the_time('d') ?>
                <?php the_time('Y') ?>

               <?php edit_post_link(); ?></p>
	</div>
	<div class="entry">
              <?php the_content(__('Continue Reading ?')); ?>
              <?php wp_link_pages(); ?>
      	</div>

            <p class="comments">
              <?php comments_popup_link(__('No responses yet'), __('One response so far'), __('% responses so far')); ?> 

            </p>
	        </div>
      <?php endwhile; else: ?>
          <p><?php _e('Sorry, no posts matched your criteria.'); ?></p>
      <?php endif; ?>
      <p align="center"><?php posts_nav_link(' - ','? Newer','Older ?') ?></p>
	</div>
  <?php get_sidebar();?>
  <?php get_footer();
?>

I am looking for this exact same answer.