Here's all the info I have:
http://my.thumbguru.com/fs/001/index.html
contact name submitted: Gnacik
email submitted:
gnat@mokre.com
The second page installs some kind of dialer bullshit that resides in the system tray. Looks pretty easy to remove, but who knows what else it does.
I didn't do a whois, just deleted and sent a really nasty email.