Can't enable USB Wireless Adapter

Hey,

I accidently disabled my USB adapter, and now I don't know how to enable it back. So somebody please help me with that
I use NETOPIA TER/GUSB2-N RT2571/RT73 USB WIRELESS G CARD.

I found a solution, and it involves temporarily bridging the wireless and lan connections (then unbridging). See Technopaideia: Frustrating but ultimately successful fix for Internet connectivity