Just out of curiosity, if you go into control panel to the game controller properties where you typically see the controller listed and you can select it to test buttons, do you see two listings when you plug in the controller with this driver installed?
It shows up as two for me, which perhaps is how this thing works. The second one seems to be coming up as a Qanba 360 I have used in the past, so maybe it's just spoofing a previously used 360 controller for the X-input mode?