bt ~ # wlanconfig ath0 destroy
 bt ~ # macchanger --mac 00:11:22:33:44:55 wifi0
 Current MAC: YO:UR:MA:CA:DD:YY (unknown)
 Faked MAC: 00:11:22:33:44:55 (Cimsys Inc)
 bt ~ # wlanconfig ath0 create wlandev wifi0 wlanmode managed
(WHEN YOU TYPE THIS COMMAND,THE NEXT LINE ON YOUR SCREEN SAYS ath0 JUST LIKE THE LINE BELOW THIS ONE!...DO NOT TYPE ath0 IN A NEW COMMAND LINE!!!) 
ath0
 bt ~ # ifconfig ath0 up