WiFi advice needed

[heavyd]

I have a Cisco wireless N router attached to my desktop (with a fast Cox cable connection). I have an Atheros N adapter in my Asus netbook. When I connect to the net on my netbook, my connection shows as a "Wireless G Network" @65 Mbps.

I'm not a complete computer idiot, but I'm new to WiFi. Can anyone shed some light as to why my connection is not N rather than G?

Thanks