Wireless Connection Mac Os 10.2.8


I put up a wireless network on a PC using a linksys wireless-b router. The isp is comcast. I try to connect to the network with my Powerbook G4 (mac osx 10.2.8) and it will not accept my password. I called LinkSys and they said that this is a common problem, and that there is a software that will take the password I have and "translate" it for my Mac (by "translate" I mean that is my understanding of what it does). Does anyone know about this, or how to solve this problem otherwise so I can get on the internet? Thanks,