Right, firstly, why didn't you post this in the mods thread? It is always on the first page, and not very difficult to find. Also, the address for it is in the readme. This time I will answer your question as best as I can, but next time, you will be ignored if you don't post it in the right place. Oh, and putting what mod you are having trouble with in the title would help you get an answer. I only stumbled across this thread be accident, otherwise you would have got no response.

Ok, now thats out of the way:

I have, I admit, forgotten to put the new planets in the 'Random' category for the map maker. This basically means, none of the 4 new planets will appear in the computer generated maps. You must put them in manually with the in-game map editor (not Galaxy Forge). I will release a fix for this within the hour hopefully, please check back in the mod's thread regularly.