How to add someone on myspace if you don't know their email?

There was this person that went to my school 2 years ago. Then she moved away and I never had a way to contact her. But I think I found her profile on myspace but I can't add her as a friend because I don't know her email. I tried sending her a message but she has it set so that you can't send her a message if you haven't added her. Is there a way I can find her email or somehow tell her i'm trying to add her? I tried sending an IM but I don't know if someone recieves IMs that were sent while there offline. If I wait till she's online could I send her an IM?