i need to have the camera moving but always looking at the object.
i read to use a path and then use a track to constraint.
problem is when i am on the camera i do not see the constraints box!
the wiki manual says Constraints are accessed via the object buttons (F7)
i have 2.42 -but F7 does not bring up the contraint panel - at least when i am on the camera
Select the Camera, and then the Object to track (strictly in this order): hit [Ctrl]+[T] and choose the first option: select the object and move it, you’ll see that the Camera will adjust its orientation to keep the Object in view.
This trick is very useful with an Empty… more flexible than tracking a specific object 
Thanks
the camera is moving and the object stationary and it still worked!
does this mean it worked as you expected?