The link in Griffs massage links to itself.
He mend: here
In trunk, the mac port of Oolite has a bug that prevents interlaced from being loaded. Opening all your textures in mac's own "Preview " program, returns 3 textures that have interlace type 1 instead of 0: PAGroove_Metaforce_coriolis.png, PAGroove_Redtec_coriolis.png, PAGroove_Solartec_coriolis.png
I am sure they don't load, but you should see an entry in the log though. And, as there is no reason to use interlacing in Oolite textures, better save them in plain format. Interlaced graphics are great though if you want to show pictures in web pages with slow connections.