This is my entire index.php entry. I don't see what you are referencing. Do I need to add something and if so does it need to be added for each poster in order to post the poster's name on her posts?
<?php get_header(); ?>
<div id="content" class="narrowcolumn">
<?php if (have_posts()) : ?>
<?php while (have_posts()) : the_post(); ?>
<div class="post">
<h2 id="post-<?php the_ID(); ?>">" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></h2>
<small><?php the_time('F jS, Y') ?> <!-- by <?php the_author() ?> --></small>
<div class="entry">
<?php the_content('Read the rest of this entry »'); ?>
</div>
<p class="postmetadata">Posted in <?php the_category(', ') ?> | <?php edit_post_link('Edit','','|'); ?> <?php comments_popup_link('No Comments »', '1 Comment »', '% Comments »'); ?>
<!--
<?php trackback_rdf(); ?>
-->
</div>
<?php endwhile; ?>
<div class="navigation">
<div class="alignleft"><?php posts_nav_link('','','« Previous Entries') ?></div>
<div class="alignright"><?php posts_nav_link('','Next Entries »','') ?></div>
</div>
<?php else : ?>
<h2 class="center">Not Found</h2>
<p class="center"><?php _e("Sorry, but you are looking for something that isn't here."); ?>
<?php include (TEMPLATEPATH . "/searchform.php"); ?>
<?php endif; ?>
</div>
<?php get_sidebar(); ?>
<?php get_footer(); ?>