How can you use an Xbox 360 controller with Portal on a Mac?

I would like to use a wired Xbox 360 controller to play Portal on a Mac. I tried following the steps as explained in the Steam Support article “Using an XBox 360 Controller with Source Games.”

So I:

• Installed the driver from tattiebogle.net (v0.10).
• Checked that the controller works with the “Xbox 360 Controllers” pane in System Preferences (a.k.a. “Pref360Control”).
• Started Portal, enabled the developer console.
• Opened the developer console and submitted “exec 360controller”.

But the game still doesn't respond to the controller. Is there any step I missed or something else I need to do?

I'm running Snow Leopard (10.6.8).

I don't have a perfect answer to your problem, but if you don't find anything, try checking out ControllerMate : http://atmac.org/controllermate. This will let you remap anything (in this case, your keyboard's controls) to your controller, and you can choose for which app it will be activated. Not the perfect solution, but it may work out well...