Poser Macinstaller 1.0 by MartinC will de-reference those textures as a batch process (supposedly, I haven't tried). ...that your OS? I've downloaded it but haven't tackled it yet, it will do so much it scares me. It sorts everything into your Runtime folder and makes it all happy. It will alias everything into an ExtraRunTime folder so you can keep the Runtime folder unmodified. I expect it to be as indespensible as his Poser Maconverter 1.1.2.