Pro Pack has nothing to do with webpages. Not sure how you got that idea :o) Pro pack is a sort of Poser 4,5. It has setup room and multipane cameras as the most visible difference. And some more export plugins, which may be why you associate it with webpages as it can export to Flash. And then of course Python.

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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.