PS3 controller with Halo 2 PC

[Grumperpuss]

Hey there, i just beat halo 1 on my computer using my ps3 controller and now i would like to do the same with halo 2. I found the controller settings in the game but the only problem is the button layout for the x-box 360 controller and ps3 must be different because the buttons are all messed up, now what i would like to know is if there is anyway that i can easily adjust the control's outside of the game or just disable the controller in game so i can use JoyToKey.