The NO_MAP file must be absolutely empty. At least that is how it always worked for me.

But - there is something else going on as well. The no_map indicates for poser: No texture map. So if you press OK and hit cancel or if you load the no_map file, that should not change anything about the textures.

If a texture does not load properly and shows as black in the preview, then there is apparently a real texture wich is not loaded.

Check the materialname in the poser room and then look into the CR2 file if there is something strange going on in that material section. (Missing quote, wrong path reference, spelling mistake or something else). It is always possible that PP2012 parses these filenames differently as in PP2010 because the whole program has been transferred to use unicode (which is a method how text is written internally)

Since I don't have the prop and the textures there is not much I can do to check for these errors.