Prince Evening Song
Whoah, hey now, I'm just not a fan of Java. Don't get so defensive - there was no offense intended, man. The fact that you're running anything at all for us is pretty cool of you.
If you're happy with the codebase you're using now, then I can't help you. If you're interested in switching over to something else, but aren't sure what to use or don't think your platform will support it, I'd be glad to offer my two cents. *nix obviously offers the widest variety of codebases, but Windows servers have their fair share as well (either through ports, Cygwin, or proprietary builds).
Of course, it seems your primary problem is a lack of server at all. I have a Windows Server 2008 box I don't mind opening up, but it's so new that I'm sure a lot of older codebases aren't going to want to work. If anyone else on tgchan is willing to offer up an old box (seriously, this thing just needs network access and a couple hundred megs - it can be a dinosaur), we can work with that.
When are you usually on IRC? I'd like to have a chat about this, if you're up to it.