[lordcoder]

No , there’s a very simple way , simply use this url as the image url :

http://www.gravatar.com/avatar.php?gravatar_id=MD5

MD5 should be replaced by the md5 hash of the poster’s email address .

Look at the “How the URL is constructed” section on http://gravatar.com/implement.php if you need more options like the size , rating …