You can rename the cr2 /pp2 without any problems. A library manager for Poser is Pbooost (for sale here, in the marketplace for 20$ - if you have P4 it's a MUST in the long run, and even if you have P5 it's a good tool for moving and managing files) There are also some Poser installers, but I haven't tried any of them so I don't know if they're any good. One proggie is PInstall. I think it's good, but again, I haven't tried it.

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.