Wifi, xbox 360 and a macbook

Aright... I have a first gen black macbook and i want to hook it up with my new xbox 360 over my existing wireless cnnection. I understand I should use the Connect360 software. But befor i do that i would like to know how to hook my 360 to my network. The wireless router is a Dlink DI-524 with the latest firmware. It seem the 360 cn "see" the network, but it cannot connect to it....

Talked to a guy at bestbuy, said that my routers is prolly the culprit... said they burn out after a year...especially the cheaper ones and dlinks...lol

I have had several dlink products and they where all crap! Buy yourself a Linksys wrt54gl router (the linux model) you wont regret it!

Wh the linux? is it better than the newer firmware?