We're in France now and I don't have much time for 'computering'... or rather, my dear wife won't let me.
There is some progress as I moved the server to a new service/company. The trouble is that for some reason it (their access?) seems to block access to FSHost/TeamSpeak. So although all is running, it cannot be accessed from within FS9/FSX yet.
Time (and to some extent experience) for debugging this has eluded me for the past (and coming) weeks. My priority in these troubled economic times is on making some money (we're well below minimum wages for a year already) and so other things are in limbo.
I'll get back to it as soon as I can, especially for those kind people who have helped contribing to it.