We understand that you have to go into different line to buy a tourist pass etc
Follow the crowd.............purchase tourist card $10 per person
Follow the crowd.............stand in line to get your passport stamped
Follow the crowd.............wait for luggage to arrive
Follow the crowd.............get in line to clear customs
.............Exit the airport..............
Seriously, look for a booth selling the tourist card. After that basically just go where all other passengers are going. There are two different lines when you go to get your passport stamped but they are clearly marked...resident/non-resident.
You should receive two forms on the plane to fill out ahead of time. One other thing SDQ airport is very good with comparing your checked luggage receipt with the tag on your luggage so try not to misplace that.
Enjoy your trip.............