You can do that, but you have a choice. In the back of the access point is an RJ45 connectior, which you can use to plug the AP into the gateway PC with an ethernet cable.
Alternatively, you can buy a wirelesss PCI card and put it into the gateway PC and use that to connect to the AP.
PS. Pls post in a nice font
PPS. I
think it's a straight ethernet cable from PC to CM.