Hi,
I put some celestia-releated files in a rar-archive
and put it in the eDonkey network.
It contains all important .dds .png and .jpg files,
celestia 1.2.4 (for win32) and some other addons like moons,
asteroids, galaxies...
...and a little prog, (written by a friend) to generate textures for gasgiants.
So if you want to download it try to search for:
Celestia.Astronomy.Program.Planets.16kTextures.Addons.RAR
(about 200MB - date of creation: end of july)
the search string "celestia" might be enough to find it.
the more people download the more it will spread...
greetings from germany
have fun.