I'd like to ask for some clarification if its okay. You are having issues within metasploit if I understand correctly? This happened after you did an update to metasploit. From the looks of it your wifi card is responding normally. Also you are running BackTrack R2, not R3?
May I suggest updating to R3? As for metasploit did you update using git or msfupdate? Sorry I haven't been much help yet.