I'm not sure how much help I can be with the sex drive thing overall since that's not really a problem with me, but a couple of thoughts come to mind:
I was on the pill for a while but it was the progestin-only pill. And I found that it made my sex drive go through the roof - to the point that it was a problem actually, since I was having trouble concentrating on my job during the day and stuff. My sister went on it and said the same thing happened to her too. So maybe that's an idea for you.
Also, if she has any sex drive at all she's probably fantasized or thought about things she'd like to do. I remember years ago I read a couple of books that listed hundreds of women's sexual fantasies, I think they were by Nancy Friday, My Secret Garden and another one. Maybe reading something like this would help get her back in touch with that side of herself. Good luck.
