Holy cow, this is the worst I've seen yet for a contestant.
First, a Google Newsgroup listing of posts made by a Christa Hilda Hastie, from LA (there is only one Christa Hastie in the LA area, according the ussearch.com), and you will notice that some of her messages are about computer programming, which is her major. Pay particular attention to post #2 on the list.
For confirmation that it's really her, this is a link to a picture of her (second from the right) on an old website of hers. The contact e-mail for that site is the same as that Google search mail address. The picture is definitely of her.
If you want to see her with her original hair:
I don't figure that site will be up for long. But our little Christa is a coke smoker, meth snorter, hot snowboarding, Nazi skinhead chick. WOW.