http://www.marquetteimages.com/
Looks like a "clearinghouse" of officially released MU photos.
I've used it a few times and I think they are in the process of populating it because for last season under men's bball there are only pictures of jerel. It's a little odd, but I think it's only because they haven't gotten everything digitized and on there yet.
Here's some info I put up over the summer.
http://www.muscoop.com/index.php?topic=9880.msg86632;topicseen#msg86632 (http://www.muscoop.com/index.php?topic=9880.msg86632;topicseen#msg86632)