I know that using  sf_show_members_avatar($userID->user_id=3) will call a certain avatar.

But how do you make it so it shows each author's userID when you click on their name? Is there a way to incorporate it into:

<?php
if(isset($_GET['author_name'])) :
$curauth = get_userdatabylogin($author_name);
else :
$curauth = get_userdata(intval($author));
endif;
?>

I would like the avatar to show up in the author's page that displays their profile and recent posts. Right now, I can create a special page for each author that will display their avatar based on calling each userID, but I was wondering if there was an easier way so i can jsut use one author's page and have the avatar change accordingly to the author.