While March 1st is past, there is still a way to pay in installments if you're interested.
If you pay the deposit and the 1st installment when you register, you can make the rest of your payments according to the installment schedule (see "Costs and Dates" for details). Of course, this option will become less attractive as the month rolls on and the April payment date approaches. You also still have the option to pay in one lump sum when you register.
Whatever you chose, registration closes on April 4th, or when we reach capacity, whichever comes first.