cool module, just what I needed to get different size user pictures.
It works well on the user profile and the comments.
However, on the node (detail) pages it doesn't change the size of the picture. It keeps showing the mini image.
Is there a problem with the Bartik theme?
When I print the $node object it shows that the user_picture_style was changed to "large" but
it doesn't show a large image. I did clear the caches.