can't get vehicle armature to work

I have done everything I can think of Geodav. Please help me here is the link:

https://drive.google.com/folderview?id=0B3A7tv8IGk-xfnlEaWxJMmF0MUt6RThwUnpPZ3NZSGM1V1FGWWFZanlZUVBGd2tBNzN4TTg&usp=sharing

the file with just centre without the y has the bone set to the grid centre, the other has the bone set to the orange dot(origin of the armature).

I’ve attempted to fix it with another 3 hours, I have set the whole vehicle to have z=0. I have moved the individual bones to as close to the centre of the wheels as I can get, I have tried setting the root bone to the origin of the grid, and the origin of the actual armature(orange dot) I have set all of the wheels to be spheres collision regions and have set all of them to kinematic. The only difference between the example project car and my vehicle are the vertex have no weight errors.

I am doing this for a school major project (a high school thing in Australia) and I need this to work because the ATAR submission(in australia that is the final exam) is coming up in 3 days. I will really appreciate all of the help you can do.

Thanks Geodav