Will a 39T Force Chainring work on a SRAM Red Setup?

I need a 39T replacement chainring for my 2008 SRAM Red groupset. I call, I browse and I find that no one has a “Red” 39T chainring. SRAM says their distributors don’t have them. The customer service person I spoke to seemed to think (I emphasize “SEEMED”) that a 2009 Force 39T was basically the same and would work.

Anyone know what the answer is on this? I trust ST way more than SRAM customer service.

If same bolt pattern, I don’t see the problem.