I think you mean pay over time?? If so then yes..that's how we do it. We put the $200 down and then pay it off little by little. The package must be paid off 45 days prior to your arrival.
That's what I have done as well. I make my reservations well in advance and then pay every month, just like a "loan" or layaway. I try to figure out what I need to pay equally every month and then when the 45 days arrives I have made my last payment and it hasn't hit me like a bomb! I think it's great to be able to pay this way, because, let's face it, WDW is not an inexpensive vacation. However, it is worth every penny!