There are a couple of links found on Moodle that should answer all your questions concerning Mobius SLIP, but I have listed them here for your convenience.
Mobius SLIP Instructions
http://www.carriereducation.com/MobiusSLIP/MobiusSLIP_1.html
Mobius SLIP FAQ
http://www.carriereducation.com/MobiusSLIP/MobiusSLIP_FAQ.html