Linksys WRT54G router as an access point

Well, the wireless on my AT&T U-verse RG (Residential Gateway) has flaked out a few times lately, and I don't recall nearly that many issues with my old, reliable Linksys WRT54G, so I'm gonna attempt to utilize the Linksys router as an Access Point, thereby allowing me to disable the wireless on the RG. Hopefully it'll work. I found a guide here, and some suggestions here as well. It doesn't sound too hard, and since the kids are away and Mandy is sleeping off a headache, I'm gonna give it a shot.