Not an answer, or a solution, but if you had the content already installed in Poser 7 or earlier, just copy the Library to your new install and the PNGs should already be there...

It is also neat to see some of the content you installed, but never used (mostly poses and expressions) no PNGs in those when you view them in Poser 8 or Poser Pro 2010!

I will say it was put in as a Feature Request, but I do not know if it will happen. (not sure of all the technical reasons that may be encountered)  I recall also several users in the forums indicated that they were going to put together a script to do it in Poser when Poser 8 launched, but I think because of all the available Free Products, it was not high on anyones priority list. The nice thing about most of them, they will remove the RSR File and then you can Zip up the content and get rid of the annoying installers!

ratscloset
aka John