To show ships of players with non-built-in ship sets correctly, be sure to extract their shipsets from PBW to your Proportions/Pictures/Races folder, under their appropriate names. You probably want to delete their AI files from those directories, though. If you have those races in your non-Proportions pictures directory, I think you can just put in an empty folder with the name of the shipset in the Proportions/pictures/races directory, and it'll work.
If anyone's confused by that or would like a giant file with all the needed shipsets, let me know.
Aargh! I can't get the pvkprop1 game to load I've put it in the Savegame folder, but I get a generic "cannot load" error when I try. Anyone have any ideas?
Do you have the correct Version of the Proportions Mod installed?
Have you created you .emp file with the correct Version or maybe with an older Version of the Mod?