Yeah, I think you're right. I just need to figure out a. what driver I would need b. where to get that driver and c. how to use it properly. All embarassingly daunting tasks for a techno-caveman at 6AM in the morning.
EDIT: Alright, I seem to have found the correct driver at the atheros site & installed them, but still no visible mac change. 3DS is still seeing the attwifi connection point just fine, though. I dunno, maybe I got the wrong driver or something...Apparently I'm now using "Atheros driver 10.0.0.251 for AR5007G". No clue where to go from here.