Wiki's Walker

I am having trouble using the PhysicsFPSWalker that is available on the wiki here:
http://www.unifycommunity.com/wiki/index.php?title=PhysicsFPSWalker
When I use the standard FPS walker on my player (a capsule with a rigidbody and collider) it works fine, but when I try this Physics one nothing happens to the player at all. I’d really like to try this out as I want my player to move differently on different surfaces (slip on ice, etc.).
Has anyone used this script? Any ideas what I am doing wrong?
Thanks

Nevermind. It was due to the grounded variable being dependant on an OnTriggerEnter () function. I missed that and didn’t have any triggers set up. I should be able to get it working right now.
Thanks for the cool script Yoggy.