I've after installing Ubuntu on my laptop to use as my main OS. My Alfa wifi works but it reports a low signal, so I want to use the driver that comes with Backtrack 3.

The driver used in Backtrack 3 is, as far as I know, Version 1.1 by Andrea Merello. I've done some Googling but I can't find any definitive resources for this driver, I just keep getting hits to different forums.

Furthermore, I don't know much about adding drivers to Linux. (I've spent the last few days reading Linux tutorials because I want to abandon WinXP as my main OS).

Can anyone help me out? First of all do I need a ".ko" file? I really don't know where to start.