Sara, I see a few problems with the linked profile. There is no Sources heading, nor is the <references /> tag beneath it.
The biggest problem, though, is that there are no sources for the profile, although there are numbers sprinkled about in the biography that you might be intending to lead to source citations.
I'll make you a deal - if you put the source citations in the profile beneath what is now there, I will come behind you and format them nicely, while explaining everything I do so that you'll be able to do it in the future.