Did you get dependency errors (i.e. while installing), or did ndiswrapper have errors after successful installation?
If errors were during the install, you need to look at the named dependencies, then go to Windows and download those, then come back. If that still doesn't work, repeat. Having working Internet is worth it
If it errored in your attempt to use ndiswrapper, you may have to build it manually from source, which requires the Linux headers package (not exactly sure which one to use, could some else tell us what package is the kernel headers?).