sorry, i removed my implementation because it slows down my comments form loading time too much.

if you wish to implement gravatar for b2, here’s how to do it. since i no longer have a copy of b2, i looked at Lissy‘s code.

open either b2comments.php or b2commentspopup.php depend on which one you are using

and find the line:

$commentdata = get_commentdata($rowc->comment_ID);

add below:

// just leave it blank if you don't want to use a default avatar image 
$default = "http://yourdomain/default_avatar_image.gif"; // the size of your avatar. in this case, it is 40x40. 
$size = 40; 
$grav_url = "http://www.gravatar.com/avatar.php?gravatar_id=". md5($commentdata['comment_author_email']). "&default=".urlencode($default)."&size=".$size;

add the line below whereever you want your avatar to show up in your comment:

<a href="http://gravatar.com/" title="Get your gravatar at gravatar.com"><img src="<?php echo $grav_url; ?>" alt="Get your gravatar at gravatar.com" /></a>

if you use my threaded comments hack, you need to do similar things for my dodos_thread function in b2functions.php