Now you have the solution: Xpadder. That handicap will become useless when installing this useful application which will configure your gamepad so it will be able to be used to play any game, even if it doesn't support gamepads.
How does it achieve it? It's easy, it converts the buttons of your gamepad in keys, so it simulates keystrokes when you press the buttons of your gamepad.
Xpadder supports a lot of gamepads. It is a dream come true for gamers.