I've been mining on this pool for about 36 hours with 2gh, how long before I should be worried that I didn't set something up correctly and wont be paid out?
Assuming that everything but the stats is still working correctly and that the payout queue is still only a few blocks deep, then at 2GH/s you should get payed roughly every 3 or 4 days of mining. The first payout could take an extra day because you don't have much EC yet.