Tried to create a profile, but failed when I got to the picture step. In my first attempt I tried to upload a bitmap. I don't see any reason why you don't support this format. Size isn't the reason, as it's already been uploaded to your servers when you reject it. I converted the file to a tiff, uploaded it, and was stuck staring at a "Loading" screen. I tried both IE and Firefox, but never got past that point.