Draggable movies to specified X/Y coordinates

I have 13 Buttons that are draggable. 9 desktop computers, a cable modem, a 3Com Switch, a wireless router, and a normal router. I want the user to try and set up a network without help but then have a static button that on release slowly moves all the pieces to their respective places.

I see a problem in having all 9 of the computers as different instances because if one is in the right spot for a computer... but it's not the right instance of computer it will move around when it doesn't need to. so I need each of my computers to be able to snap to either of the nine computer spots without trading.