Yes that works. You basically download it, run it, it will unzip the files to a directory you can choose and then it gives the error message about the hardware being unsupported. After that you can do the device manager thing and point it to the directory with the unzipped files and can force install it easily. No need to modify the .inf files and stuff if you take that approach.
However this is really more of a Windows on Mac issue so you probably should have posted this in the other forum.