[Suicide Junkie]

When you unzip the planetpack you will get a file called "newplanets.bmp" You need to replace your planets.bmp with the new file.

You can delete planets.bmp and then rename newplanets.bmp.

I did it that way so that the zip wouldn't overwrite any files when it was installed. It seems to be too much of a hassle for the end Users, so I think I'll change that to automatically replace planets.bmp from now on.