Just some other ideas: http://community.linuxmint.com/tutorial/view/1110
You could use Xdotool: http://packages.ubuntu.com/lucid/xdotool or joy2key: http://packages.ubuntu.com/lucid/joy2key Or qjoypad: http://packages.ubuntu.com/saucy/qjoypadI remember that I had good success with joy2key, my Saitek USB gamepad and some free FPS back then which had no joystick support.
HTH, Holger
