Avatar Plugin

I am trying to add the avatar images to the following comments files. Yet I am having issues. I am obviously doing it wring, can someone please take a look and tell me what I am doing wrong. thanks.

/----- Comments.php -----/

<?php // Do not delete these lines
if ('comments.php' == basename($_SERVER['SCRIPT_FILENAME']))
die ('Please do not load this page directly. Thanks!');

if (!empty($post->post_password)) { // if there's a password
if ($_COOKIE['wp-postpass_' . COOKIEHASH] != $post->post_password) { // and it doesn't match the cookie
?>

<p class="center"><?php _e("This post is password protected. Enter the password to view comments."); ?><p>

<?php return; } }

/* Function for seperating comments from track- and pingbacks. */
function k2_comment_type_detection($commenttxt = 'Comment', $trackbacktxt = 'Trackback', $pingbacktxt = 'Pingback') {
global $comment;
if (preg_match('|trackback|', $comment->comment_type))
return $trackbacktxt;
elseif (preg_match('|pingback|', $comment->comment_type))
return $pingbacktxt;
else
return $commenttxt;
}

$templatedir = get_bloginfo('template_directory');

$comment_number = 1;
$alt_comment = '';
?>

<!-- You can start editing here. -->

<?php if (($comments) or ('open' == $post-> comment_status)) { ?>

<div id="comments">

<p class="comments_intro"><span><?php comments_number('0 comments', '1 comment', '% comments' );?></span></p>

<dl id="comment_list">

<?php if ($comments) { ?>

<?php foreach ($comments as $comment) { ?>

<dt class="comment<?php if (k2_comment_type_detection() != "Comment") { echo(' trackback'); } if ($alt_comment == 'alt') { echo (' alt'); } if ($comment->comment_author_email == get_the_author_email()) { echo (' author'); } ?>" id="comment-<?php comment_ID() ?>">
<span class="comment_num">" title="Permalink to this comment" rel="nofollow"><?php echo($comment_number); ?></span>
<?php comment_author_link() ?> <span class="comment_time">{ <?php comment_date('m.d.y') ?> at <?php comment_time() ?> }</span>
</dt>
<dd class="comment<?php if (k2_comment_type_detection() != "Comment") { echo(' trackback'); } if ($alt_comment == 'alt') { echo (' alt'); } if ($comment->comment_author_email == get_the_author_email()) { echo (' author'); } ?>" id="comment-<?php comment_ID() ?>">
<div class="format_text">
<?php comment_text() ?>
<?php if ($comment->comment_approved == '0') : ?>
<p>Your comment is awaiting moderation.</p>
<?php endif; ?>
</div>
</dd>

<?php if ($alt_comment == 'alt') { $alt_comment = ''; } else $alt_comment = 'alt'; ?>

<?php $comment_number++; } /* end for each comment */ ?>

</dl>

<?php } else { // this is displayed if there are no comments so far ?>

<?php if ('open' == $post-> comment_status) { ?>
<!-- If comments are open, but there are no comments. -->
<dt class="comment">There are no comments yet...</dt>
<dd class="comment">
<div class="format_text">
<p>Kick things off by filling out the form below.</p>
</div>
</dd>

<?php } else { // comments are closed ?>

<!-- If comments are closed. -->

<?php if (is_single) { // To hide comments entirely on Pages without comments ?>
<dt class="comment">Sorry, we're closed</dt>
<dd class="comment">
<div class="format_text">
<p>Like gas stations in rural Texas after 10 pm, comments are closed.</p>
</div>
</dd>
<?php } ?>

<?php } ?>

</dl>

<?php } ?>

<!-- Comment Form -->
<?php if ('open' == $post-> comment_status) : ?>

<?php if ( get_option('comment_registration') && !$user_ID ) : ?>

<p class="unstyled">You must /wp-login.php?redirect_to=<?php the_permalink(); ?>" rel="nofollow">log in to post a comment.</p>

<?php else : ?>

<p id="respond"><span>Leave a Comment</span></p>

<form action="<?php echo get_option('siteurl'); ?>/wp-comments-post.php" method="post" id="comment_form">

<?php if ( $user_ID ) { ?>

<p class="unstyled">Logged in as /wp-admin/profile.php" rel="nofollow"><?php echo $user_identity; ?>. /wp-login.php?action=logout" title="<?php _e('Log out of this account') ?>" rel="nofollow">Logout →</p>

<?php } ?>
<?php if ( !$user_ID ) { ?>
<p><input class="text_input" type="text" name="author" id="author" value="<?php echo $comment_author; ?>" tabindex="1" /><label for="author">Name</label></p>
<p><input class="text_input" type="text" name="email" id="email" value="<?php echo $comment_author_email; ?>" tabindex="2" /><label for="email">E-mail</label></p>
<p><input class="text_input" type="text" name="url" id="url" value="<?php echo $comment_author_url; ?>" tabindex="3" /><label for="url">Website</label></p>
<?php } ?>
<!--<p><small>XHTML: You can use these tags: <?php echo allowed_tags(); ?></small></p>-->

<p><textarea class="text_input text_area" name="comment" id="comment" rows="7" tabindex="4"></textarea></p>

<?php if (function_exists('show_subscription_checkbox')) { show_subscription_checkbox(); } ?>

<p class="submit_p">
<input name="submit" class="form_submit" type="submit" id="submit" src="<?php bloginfo('template_url') ?>/images/submit_comment.gif" tabindex="5" value="Submit" />
<input type="hidden" name="comment_post_ID" value="<?php echo $id; ?>" />
</p>

<?php do_action('comment_form', $post->ID); ?>

</form>

<?php endif; // If registration required and not logged in ?>

<?php endif; // if you delete this the sky will fall on your head ?>
</div> <!-- Close #comments container -->
<?php } ?>