I'm a big fan of ANTM and BNTM and often read up on the online forums about the shows. Obviously a lot of rumors and untruths grace the internet about the contestants, but these photos of Whitney have been posted on numerous sites, and I think you can see it's definitely her. Apparently, she was told that at the size she is in these photos, as a size 4, she was too
fat to be a normal model, and either had to lose weight or gain weight and become what is considered 'plus size' if she had any chance of succeeding in the industry.
Whitney 01 Whitney 02 Whitney 03 
