you will want to examine the following table to see what your VID and PID is to know if you need RFMD or 3861. I got my VID and PID from the dmesg command.
a how to guide that assisted me with my WUSB11 v2.6 http://atmelwlandriver.sourceforge.net/howto/howto.html
Good Luck! I still haven't got the encryption peice to work.