Cisco valet router setup for ps3?

my router which i had for 2 years burnt out and ive never had one problem with lag or anything with it. Long behold they don't make it anymore so i got a cisco valet router. HOW THE FUDGE DO I SET THIS UP FOR MY PS3? it will pick it up but when i type in the wpa code which was my house phone on the old one, it dosent work. can some please tell me how ive been waiting all day to ******* play video games, i have the fudging geometry regents tomorrow and i need to relax.