I don't know if this helps, but I went through this and saw a few problems. When using segment shaders, the textures must be in the texturebank or the effect will not work properly. So I took some time to look through and made some changes and these should work just fine now. Also I used bond1's free segment shader to take the place of the bump shader you were using. I changed the spec map to a nice blue to give that frozen o2 look. Enjoy!
Screenies
Here is that nice blue look I talked about
If you purchase rolfy's weather and skybox packs, they really at to it.
EDIT:
In the download below, is the map and all the files ready to be unzipped into your files folder. If you move the files from the folders I have made make sure you edit the .fps file with your changes.