question regarding 'Repeat Home Buyer Tax Credit'

olderfrog

I read several articles about this $6500 credit, but didn't find any wording on whether the old house should be sold before the Apr 2010 deadline to qualify for the credit.  Anyone knows if that is good enough to get the credit just for buying new primary residence and putting the old house on the market or rent it out?

I am not thinking about tricking the system by buying investment property.  It is just under this buyer's market, it is easier to control the timing of buying than selling, i.e. it is hard to know when I can sell my current house.

Thanks in advance!