Is there any way that I can load an old Poser-4-created PZ3 file into Poser 2010 and render it such that it will produce an exactly pixel-for-pixel identical final render image to what I'd get under Poser 4?

I remember that in Poser 5 you had the option to use Firefly or "Poser 4 render" engine to replicate previous/legacy renders, but that option seems to have disappeared somewhere along the way. Is there any way to access it under 2010, or at least use a combination of settings that will give an exact reproduction? The reason I need to do this is not because I like the P4 engine "better" but because I have old scenes that I need to be able to make very small changes to figure/pose-wise, but leave the rest of the frame completely unchanged, so that it matches up to other renders in the sequence without standing out. So even subtle lighting/shading type differences are unacceptable.

Does anyone know whether this can be accomplished under Poser Pro 2010? Thanks very much for any assistance...