GENERALLY, the screws should be in the center of the slots and the snowshoes on top of a rivet. If the screws are way off, it is a very good indication that you are not set up right. That said, it is possible, albeit unlikely that you are off by 120 degrees in either direction. This is why I always take a picture or mark with a sharpie before I disassemble something like this.
Sorry that I can' be of more help. I don't have the game or the manual.