Maybe it's not the right driver or you've not included all of the needed files.
http://ndiswrapper.sourceforge.net/p...70f05c2f3eb7bd
From the ndiswrapper installation docs:
"If there are multiple INF/SYS files, you may look in the List if there are any hints about which of them should be used. Make sure the INF file, SYS file and any BIN files (for example, TI drivers use BIN firmware files) are all in one directory."