We've finally managed to overcome technical problems. Without diving into details, basically - HDD had given up the ghost. We (I mean, lazy French technicians squad) needed to replace it in the middle of Christmas...
But now we're there again, for now only forum + wiki, but FOnline server is going up in a minutes.
And let's hope it won't happen again. Why should it? In the meantime, check the post beneath this one. And vote.