WARNING, I've not tried this, but... I would only move the "content" folders. Within Runtime - no need to move anything outside of that - move Geometries, Libraries, Reflection Maps and textures. They are all folders that you install products into. If you've installed Python scripts, you may need move them -perhaps individually from /Python/poserscripts. Do NOT copy over things like ui and prefs - that's where the xml and the like are - which is possibly the "bits" left over from SR2. (It was a topic of some concern back in the public "beta" of SR2 that new files were being added, but nothing deleted.) Take it cautiously and if everything works, you moved enough. BTW, when you install Poser 5.0, apply SR4 before you even think of starting Poser 5 (no need to start all that copy protection code up that's going to be undone by the SR). If you've already installed the Figures SR, you may not need to apply it again (the fixes should move over with your content). Otherwise apply it last, after you've moved your content over (else you'll undo the update).