dad has an iBook (802.11g), I have a MacBook (802.11n). Currently running an airport extreme in the a/b/g mode, but really want the full speed of n for my MacBook. Is there any way to use an Airport Express to extend the Airport Extreme network using a/b/g, where my extreme will emit n speeds. i.e. AExtreme - running 802.11n AExpress - running 802.11g thanks a lot!