From everything I can find in bsd forums & google searches, this card is not supported in FreeBSD (and by extension PC-BSD).
I did find a snippet from a brief discussion
from this past September, and reference to someone trying to get it working.
Does anyone know if ndisgen could get this working?
Damn, I'm soooo close! If I could just figure out how to get this card working and figure out touchpad synaptics scrolling (ongoing battle), I'd be set.
Another option I'd be willing to pursue is compiling a new kernel to support the wireless driver, if it would work.