Amsterdam Unlimited was once a TremX Unlimited. And I ought to say that we decided to switch back to trembase due to HUGE problems with server setup (rotation did not work at all and some other things), it also lagged even our server, which perfectly handles 999bp @ trembase and 32 clients now. The gameplay also is either FF spam, or xael spam, or both...
~As for the topic, you might want to head to the bricosoft forums, they have got a tremx server running and might help you over there.