Send the abusive emails to
[email protected] that should help. You can track normal emails back to the originating ISP, I'm not sure if you can do that with AOHell, though. AOL most certainly can help with this sort of thing.
I use this website to track ISPs and such:
[url]http://combat.uxn.com/[/url]
Or, you could ask "her" to meet you and show you in person the kind of sexual acts she's describing... [:D]