How in CS6 extended?
It sounds like what you want is for your 3D object to remain stationary in the frame and you rotate the ground plane to match an underlying photo or something.
I don't know of a way to do that. I believe what you have to do is move the camera position by choosing the Current View in the 3D panel, selecting the Move Tool, then choosing one of the movement tools in the Options bar and dragging on the image - THEN move the object into place by choosing it in the 3D panel, again selecting the Move Tool and one of the movement tools in the Optinos bar (or hovering over the appropriate parts of the 3 way arrows), and moving the object by dragging on the image.
Hope this helps.
No, the way I figured out was pretty much the same why you did it. I didn't see your post until after having figured out for myself. Be nice if there was a quicker way. I remember in CS5 it was also a chore, though CS6 seems easier.