Attached Link: http://neocron.lunarpages.com/alforum/index.php?topic=1489.0

Dizzi has a simple RSR convertor at the link. It will work on your entire library if you want, since it only converts RSRs which don't have a corresponding PNG. I'm still on Poser 6, but I ran it to simplify my library folders - many items had both types of thumbnail. I was able to delete all the RSR files in my libraries afterwards.