How can I reassemble a Yard Machines rototiller?

To specify: A Yard Machines, "Yard and garden cultivator." 31cc, or 1 horsepower, 2 cycle engine. There's no repair manual I can find online. The main problem remains to be found. When I turned it on, and revved the engine, the tines would not spin at all. I took apart the bottom area, (where the driveshaft connects to a couple of gears to spin the tine axle) but i really need a picture of another rototiller taken apart or a repair manual to figure exactly how it fits together (it fell apart as the two sides of the differental seperated). If i can see how another one goes together, I can figure out what's broke.

JAke
April 2007