The offending pictures:
According to the Boston Herald report about her dismissal, the fact that she and her friends put the word or an image of a penis on their friend at least 14 times wasn't the problem. However, there were also swastikas drawn on his chin and upper back.
Patriots owner Bob Kraft is a big supporter of the Anti-Defamation League, and doesn't take kindly to anything involving anti-semitism. Not that it takes membership in the ADL to realize that there's something wrong with drawing swastikas on someone's face...
Ironically, in Caitlin's interview with the Sun Chronicle that took place during the auditions, she talked about how she looked forward to the community service aspect of the cheerleading job, noting that she has had some experience helping humanitarian groups like Habitat for Humanity, as well as food pantries with her church.
""In addition to spreading a good image for the Patriots, you do some good things for others"
She is now a student at Johnson and Wales University in Providence, Rhode Island.
Here is a pictorial of Caitlin's brief run with the Patriots cheerleading squad:
Caitlin Davis' Life Is Not So Cheery Now [Boston Herald]