Author Name At End Of Post

Can anyone tell me why the blog author isn’t coming up if my index..php looks like this? (www.mortalmethods.com)

<div id=”content”>

<div id=”contentleft”>

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>

<h1><?php the_title(); ?></h1>
<?php the_content(__(‘Read more’));?>

<!–
<?php trackback_rdf(); ?>
–>

<div class=”postmeta”>
<div class=”postmetaleft”>
<p>by <?php the_author() ?> on <?php the_time(‘F j, Y’); ?> · <?php the_category(‘, ‘) ?></p>
</div>
<div class=”postmetaright”>
<?php edit_post_link(‘(Edit)’, ”, ”); ?>
</div>
</div>

<div style=”clear:both;”></div>

<?php endwhile; else: ?>

<p><?php _e(‘Sorry, no posts matched your criteria.’); ?></p><?php endif; ?>

<h3>Comments</h3>
<?php comments_template(); // Get wp-comments.php template ?>

</div>