well, you are going to like this:
get internet connection through an Ethernet/cat5e cable (plug it in)
Fetch the latest ports collection, choose your style:
Assume you are completely new, just do the portsnap method (yes do it in the terminal all as root):
then cd to ./net/bwn-firmware-kmod
make install clean
Then configure the device and your internet connection:
Assuming you want follow by follow instructions:
add the following lines to /boot/loader.conf :
#if it wasn't obvious...
#oh look, firmware code!
And then set you internets using rc.conf and ifconfig:
#I assume its your first wireless device, right?
#and that you want to have acquire an ip address....
reading the handbooks helps... even for a 3 year old fledgling like me.
hopefully I did not offend you , right?