There are a number of things you can do.
1. Pick up a Logitech Rumblepad\Rumblepad II - no additional configuration needed.
2. Pick up a usb adapter and use an old Ps2 controller - no additional configuration needed.
3. Try using XBCD. I'm going to link a post from a few years back - I have no idea if this method will even still work or if the procedure has been updated, but it will give you a place to start.
XBCD config - good luck and hope it helps
Personally, I got sick of messing with it and just picked up the logitech controller. It has a setting to identify as an Xbox controller for the games that support it, and a setting to identify as direct input for games like FFXI where those triggers are super important.
Hope this helps!