How to install PPJoy?

First off, I have no idea if this is even the right forum, so pardon me if I got it wrong.

I’ve been trying to play Super Mario 64 with a Wiimote and nunchuck. I’ve got them working great with GlovePIE, but there’s one problem: I can’t walk. Using the nunchuck, I can only run at a full tilt!

I’ve heard that I can use PPJoy to have various levels of analog-stick tilting and can use it to walk. I’ve gone through LITERALLY every single ‘how-to’ I can find to install this program, but nothing seems to work!

I’m in Test Mode, have disabled driver signing, and have downloaded the PPJoySetup file. When I open it and double-click on the Setup app, it gives me an error that says, ‘Error installing new device drivers. PPJoy will not be operational. You will need to manually install the device drivers.’ If I try to run anything, it whines about configuring a virtual joystick in the PPJoy Control Panel, which does not exist.

Please, if anyone can help me figure this out, I’d be most grateful.

(P.S. This is Windows 8.1.)