3rd Person Controller - No Movement

Hey,

I'm just going to outline the steps I have taken thus far:

I added the 3rd person controller from the character controllers package provided within Unity. I added the 3rd person controller to my terrain and attached my main camera to the camera transformation window within the third person camera (script).

I tagged my camera as being the main camera.

Whenever I press play to enter game mode, my controller is frozen in place and never moves. I am, however, able to look around with the movement of my mouse (using the script MouseLook).

I am at a loss as to why my controller will not run around my terrain and was hoping someone could provide some advice? Very much appreciated!!