This is for users with the joystick2.mfx problem. This problem has been sighted a few times already. If you experience this, you should first update your DirectX by installing the file found here:
http://www.microsoft.com/en-ca/download/details.aspx?id=35

If that still doesn't work, use the "xinput1_3setup" installed in the game folder.  This will install the required DLLs and it should fix this problem.

Thanks a lot, and enjoy the game!

-Kap