Thanks RedDog9. But here's the problem.

I've always used a Bezier Circle.
The thing is that I originally used a Curve Modifier to place the track to the path (Bezier Circle). Which (in the end) is the same thing as Parenting with a "Curve Deform." But for argument sake, I followed your tut to the letter. Or at least as far as I could. ;)

I need the track to stay on the path (Bezier Circle) no matter where I place or rotate the path. RedDog, When I tried it, I had to move the track on it's Z axes in order to get it to move along the path.  And if I move the Bezier Circle on the X axis at all, the track freaks out for some reason. I've tried copying the Empty's location, but then the track wouldn't move at all.
And if I try rotateing the Bezier Circle in edit mode (to move the track on the X axis) the Bezier Circle ends up twisting. :(

I'll try recording the process I went through originally so it's easier to understand.