First, you must be a subscriber. If you're not, go to the front page and subscribe!
After subscribing, you will be able to connect to the 192Kbps server. Use the links on the front page to select a player. You should be automatically connected to the 192k stream without needing to enter a username and password.
When you click one of these links, it generates a temporary (8 hour) session key that allows you to connect from a single location to the server. If you wish to connect from a second location, you will need to disconnect your existing session.
If you try to connect manually or after your key has expired, you will be prompted for your username and password, if your player supports authentication. If this happens, you may enter your username and password to listen (be warned that it is sent unencrypted) or you may return to the site and click the listen link to generate a new session key.
If you have any problems, please post here with your operating system and player.