yes, I can access the file trough the browser and I have a network proxy. I am also trying to understand how to work it around. But what if we download some of the "static" databases on our machines ?
For the world wind data we might have to change some of the index files. Let me look around and try to figure out how to set a proxy server from the command line, that way you'll be able to access any of the remote data servers available.