Alright, here's the story. Someone other than Chris or myself owned the velthomer.net domain. Not the hosting, where files actually are, but just the domain. Said person didn't tell us when to reregister, and a squatter has taken over the velthomer.net DNS entry (the thing that translates the IP address of the site into human-readable words).
Getting it back cheaply is usually never possible.
Chris and I are working on setting up a replacement forum ASAP, which will be hosted on a Superbusnet domain which I'll post here when it's ready.
If you want to know more, visit the IRC channel at #fesschat on cetan.serenia.net.
ed DOT ropple AT gmail DOT com