I got further on Amy's quest.
First she wants a credit card, get it from the right drawer where the computer downstairs is.
Second she wants a condom, talk to Frank. Then tell him you overheard someone saying they had some alcohol. Then I did the Stephanie $50 quest, while he's in front of me. Then ask him for a condom afterwards.
Third she wants Derek's shirt, make a petition and print it on the computer downstairs. Then get everyone to sign it.
Then she wants panties, do the Madison quest where she spills beer on Ashley or get it from Vickie from her quest.