This is because sometimes the original texture is converted to a jpg to make the download smaller. If you can't find the right texture format, just hit cancel and say "no" when Poser askes if you would like to find missing files. Wait a few and the figure should appear with no texture. You can now go to the materials manager and load the jpg as a texture. As for the blank stage, seems like a common poser bug. I usually just restart Poser and try again. Hope this helps a bit. Styxx