Setting up a WiFi adapter without ethernet

[Whitey]

Hello,

Just installed XBian on my Pi and it runs great! However I am facing one problem which I can't think of a workaround for.

I have an Edimax wireless USB adapter, this one here:

http://www.amazon.co.uk/Edimax-EW-7811UN-150Mbps-Wireless-Adapter/dp/B003MTTJOY/ref=sr_1_1?ie=UTF8&qid=1367694613&sr=8-1&keywords=edimax+usb

and I would like to get it working with XBian however I don't have an ethernet connection to my router. I live in a shared house where I can't move the router and I don't have an ethernet cable long enough to go to the other side of the house.

Is there a way I can get the adapter working with XBian without having the Pi connected to my router through ethernet?

Thank you for any help.