with WIN 7 all programs are running. Even very old PSP programs. But the SR3 patch should be applied.

I have running in WIN 7  Poser 8, Poser 9 and Poser Pro 2012.

WIN 8 only 64 bit Poser Pro 2012 ist running with correcting library - Air - 0 to library - Air - 1.
The workspace is terrible. All very small and hard to read. All other programs like Paint Shop Pro have the same size of the work space.
Poser Pro 2012 is very slow and I guess when I really work with it it will crash.
I am still waiting for Poser Pro 2014 German coming out. Promised for middle of October and now for end of November.

All other 32 bit programs are working in WIN 8.
I would like to use up and then Poser 8 and it is very unkind that Smith Micro is telling that they don't support elder programs.
In Win 7 your Poser programs should run all but you need the update patches.