I have an older G4 iMac purchased about 3 years ago for my son. It does not have the built-in wireless and I did not want him ot have it until he got a little older. He is now old enough and I am hoping someone can help me figure out what I need to do to get him on-line; I didn't see the answer after looking over these wireless forums.

I have a spare Airport Express, so I had it join my existing Airport Extreme network. I would like to then just use a straight forward Ethernet cable connection between his iMac to the Airport Express, but I am figuring I need to set up the Express as a Bridge? How would I do that if it is possible?

Thanks in advance for your help!