Make sure to wait a second or two after you choose a different game type, so that the list has time to load. Browse through the servers by choosing different Game Types. At this point you should now be able to see available servers to join. If you have not logged in before, choose 'Create New Account' and fill out the form. If it's not autodownloader capable you have to find instructions on how to play provided by the PW in question, usually on their vault page or on their forums. Usually the world has in the name of the server or module if it's autodownloader capable. Note that there are two types of PW's to use, those that use the Autodownloader which allows you to browse and play games, and those that use the older PWC files which you either have to download. The NWN Master server, due to hacker activity has been taken down, bioware is working on replacing it with a new system and until it is replaced will not be available.