Where is info on the site about the Trade up Progrom.

It's been less than 2 months, but I think I'd like to trade the QS4s for QS8s


Fronts/Wides:M22s in/on
Center:VP150/VP100 in/on
Hghts,SS,SR:QS8s
Sub:EP500
AVR:Onkyo 3008