Your old runtimes and the data in them (unless they got hosed somehow) should still be accessible from Poser if you pointed to them in the library. If you moved those older files, you may have forgotten something.

I only chimed in as I just recently was checking old files (Poser 5 and 6) and they load up just fine in Poser Pro 2012.

Run a general search for .obj and see where that takes you.

"Few are agreeable in conversation, because each thinks more of what he intends to say than that of what others are saying, and listens no more when he himself has a chance to speak." - Francois de la Rochefoucauld

Intel Core i7 920, 24GB RAM, GeForce GTX 1050 4GB video, 6TB HDD space
Poser 12: Inches (Poser(PC) user since 1 and the floppies/manual to prove it!)