are you using the xp drivers? are you putting the sys and inf files in the same directory?
Are you doing this all from command line? You could always apt-get ndiswrapper-gtk to make sure everything is where it needs to be
you can also try installing the next version
these are rpm, but you can convert them using alien
http://packages.sw.be/dkms-ndiswrapper/
are you using the xp drivers? are you putting the sys and inf files in the same directory?
Are you doing this all from command line? You could always apt-get ndiswrapper-gtk to make sure everything is where it needs to be
you can also try installing the next version
these are rpm, but you can convert them using alien
http:// packages. sw.be/dkms- ndiswrapper/