I have seen this video tutorial of how to read out an XP password..
htt p://blip. tv/file/2239210/ (look for spaces)

I use the backtrack pre 4 release per USB on my netbook (windows xp on harddrive)

the big problem is now, that i dont know where to find windows or the harddrive in general :/ all i can find is the usb stick with backtrack and some other things like photos on it...

thanks for help!