so far, the only link that has worked so far is sentinel's. you people need to realize that unless we're friends with you, we're not going to be able to see your profile. it's kind of like being able to do a search but not being able to click on someone's name unless they are your friends.
there's a way to circumvent this -- refresh the main facebook page (your home page, once you've logged in) until you get the tip under "The Next Step" to put a link in your AIM profile. there's some random arbitrary string that is attached to the profile.php page that ultimately allows other users who are not your friends to see your profile.