you don't need to register via the php page,
1) first open the config file, which is based in the server folder.
2) configure everything so
change localhost to your ip, then replace nome(name) with your name of the server. then change the version to 2.1.6 ( the version you should have)
then change the PASSWORD to your own password for the server; then save it and exit.
3) Then open the client folder and open the file game which doesn't have the orange picture. then once opened click script editor and click configuration[CF] then config the password and version using the same from the config file(server), language(by just changing Italien to English, for the all italien not 1 or 2) then scroll down until you see localhost and change ip and port to the ones in the config file(server folder)
4) your finished hope this helps people!!!