ORIGINAL: Flypaper 2
Conventional prop and pusher prop are both the same. Just depends whether it's on the front of the wing or the back.
Correct in the fact that they will move the aircraft in the same direction. However the props themselves are very different... Opposite in fact. The images posted above by Tall Paul highlight this perfectly.
But yes - the outcome will be different depending on where you mount them.
Cheers
-J