check this for your wireless card whether its compatible or not.
http://backtrack.offensive-security....p/HCL:Wireless
and use this command ifconfig -a & iwconfig & let me know the output.most probably its Atheros chipset based card.its PCI or PCMCIA or USB?
if you are able to see ath0 in iwconfig then put the card in monitor mode using
airmon-ng start ath0
airmon-ng start wifi0
that's it.





