HP G7-1272NR wireless lan not detected

[premjan]

I have an HP G7-1272NR 17.3-Inch Laptop. As per the spec on the HP web site the network/wireless are:
Network Card - 10/100 Ethernet LAN, Wireless Connectivity - 802.11b/g/n WLAN (not sure if the latter is the name of the wireless card or not?). I tried installing PCBSD (isotope) from a CD image. Actually I wanted to triple boot with Windows and Linux, but Windows got corrupted. PC-BSD was booting but didn't install to the hard disk properly. Eventually I decided to overwrite everything on the disk and install only PCBSD.

PCBSD installed and boots fine now, but my wireless card (see above) was not detected. I have a button (f12) which is supposed to toggle the wifi, doesn't work. I tried to modify rc.conf and wpa_supplicant.conf but it didn't activate the wifi (do I have to load additional modules?). I can't even seem to boot from CD thought the CD mounts if I insert it after PCBSD has booted. I tried various things at the boot loader prompt, such as boot -C but no success. If the network card is not supported I would like to wipe the disk and install Ubuntu as I had it earlier. Unfortunately I am not even sure how to do that. The ethernet adapter does work if I use a cable. But that's not really that much use as the only browser that comes by default with the CD installation seems to be w3m.

Any help would be appreciated. Either how to turn on the wifi or how to boot into and install Linux from CD.

Thanks.