When exactly did this forum went from 'beginners in backtrack' to 'advanced hunting advices' ?
Ontopic: Have you tried 'iwconfig' on the BT box? It lists all the interfaces with wireless extentions.
Because maybe, just maybe, your interface isn't wlan0 but eth1 or something.
"The difference between RAID1 and RAID0 is that the zero stands for how many files you're gonna have after a harddisk failure."