Alright...
Suncom = Tmobile basically. Merger.
First two links are more for tmobile so I am not sure how much help they will be. The third is someone asking a question and also claiming they have figured out how to setup your phone with suncom.
Good luck!
HowardForums - Scroll down for the technical details.
SquidMaster's P168 Forum
Yahoo! Answers
Hope you get it figured out.