ndiswrapper uninstall problems on Backtrack 2
 

I want to uninstall my rt61 drivers installed using ndiswrapper 1.5, the ndiswrapper drivers are working perfectly now, but since i want to use packet injection, i want to remove them. i tryed using ndiswrapper -e rt61. It then says it can't remove the file /etc/ndiswrapper/rt61. When i try using ndiswrapper -l, it says there are no drivers installed.

What should i do?

(I'm a complete noob to linux)

Are you doing it as root?
BTW : there are linux drivers for rt61, no need for ndiswrapper.

Yes, i'm doing it as a root. And i know the rt61 drivers are already included with BackTrack 2, but i'm a noob to linux, so i don't know how to setup my card (A Belkin F5D7000UK) with BackTrack 2.