My guess is that it's not a fuel issue, but Chang'll find out. A good way to tell, usually, is to disconnect the hose to the air cleaner and spray ether (aka starting fluid) into the intake. Try starting the car. If the spark is fine, the car will start right up and then die after a couple seconds, when it's burned all the ether. That means you most likely aren't getting gas to the combustion chamber. If it won't start on ether, then fuel isn't the problem.

You say that the starter motor works fine, but the engine won't turn over. That's contradictory; if the starter motor works fine, then it turns the engine over. I think you mean the engine turns, but won't fire (except once, for an instant).

Good luck!