I have set up a page at Fortunecity with my two recent addons, Buenos Aires by Night and Northern Patagonia, both virtual textures. Anyone interested is welcome to download them from there, at:
http://members.fortunecity.com/guillermoabramson/celestia
Unfortunately, there is a limit of 1 MB as filesize at the place, and I had to fragment the zips. Levels 9 and 10 of the Northern Patagonia are still not there (they will be a lot of files) by I will upload them in the future, so check it up if you like the levels up to 8.
Regards,
Guillermo
Preview of Buenos Aires by Night:

Preview of Northern Patagonia:
