Actually, my problem is the exact opposite of that stated: I have all of the kexts, frameworks and drivers from the new (9600M) MBP installed on my 8600M penryn MBP (including the new AppleVAH264HWA component). What I am missing is the build of QT that is included on the new MBP. No one will upload it anywhere (the actual quicktime.app file), so I am unable to test whether or not replacing the software enables video decoding on older NVIDIA cards.
I would bet that installing QT 7.6 is not a valid way of testing whether or not video decoding works, because I doubt that it is enabled at this stage in QT 7.6 development. In other words, I would bet that the build of 7.5.5 (which actually should be called '7.5.6,' as it is a newer rev of QT 7.5) found on the new MBP is a quick-and-dirty custom-hacked solution. That custom build is likely newer (date-wise) than these betas of QT 7.6, which have been around since the original alpha 1 release of snow leopard and are probably not feature-complete.
