I didn't keep the files, since I hadn't made many changes (I probably didn't do enough)
The "wierd effects" were null-worlds, with no picutre, null atmosphere (not "vaccuum", but ""), null surface type, and normal resource values.
That was quite a long time ago, though... somewhere around the time when it was still just "Piratesmod", and nomads were something that just couldn't be done
.