Wordpress Hacks & Tutorial part:1

Displaying Gravatars in comments

      To refresh your memory, Gravatars are little user images from Gravatar.com that are displayed against your comments in the theme (if the theme is built to support Gravatars). A lot of WordPress themes are built without the support of Gravatars. So, here is some help for you to add Gravatars in your theme. Open up your comments.php file from the theme folder. Find this piece of code :-

<?php comment_text() ?>
Replace the above code with the following code :-
<div class="gravs">
<?php if (get_bloginfo('version')>=2.5)
echo get_avatar( $comment->comment_author_email, $size = '50', $comment->comment_author_link);?>
<?php comment_text() ?>
</div>
<br clear="all" />

The above code will display the Gravatars. Now let us add some CSS to the style.css file for your theme.
.gravs {margin-top:20px;}
.avatar {float:left; margin-right:5px; margin-bottom:5px; padding:3px; border:1px solid #999999;}
When you check your theme again, you will see the Gravatar images against your comments.