So your pz2 can alreadt change the base colour, right? But also changes the texture? Hm. I would have thought that stripping out the lines that had to do with the texture should give a file that wouldn't touch those, but that is probably what you've already tried...

Can you post an example of your PZ2? It's always easier when you can see and discuss the actual example :) 

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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.