Check what driver files the hardware uses. You can find the files it needs by looking at Properties, Driver, Driver Details button in Device Manager. The problem with doing it your way, is that the .ini file that is needed to load the dirvers properly is usually not in that System32\Drivers directory. Only the .sys files of the actual driver is. You need the .ini file to explain to Windows where the files are and the proper registry entries for things.
Doing things manually is not the best solution here for you.