Linksys → [Wireless] Wireless-G game adapter and PS2 internet Setup

Well im trying to get my ps2 back online at my new house and im running all my computers off wireless so i bought a wireless-g game adapter... And well its not as easy as they say it is.. Well i setup the adapter on my computer then went and hooked it up to my ps2. Then i went to network setup set that up like usuall and.. I tried it but uh... wth ? nothing.. But i do also have a secured network that requires a password on all computers to run off the router... But when i went through the setup to enter any form of password on my network... It also requires a "user ID " but i dont have one or need one... So im confused on what i should do... So can anyone set me off on the right foot... Before my foot kicks this technology out on the freeway ?? Thanks, Dustin