The procedure to create a chat room is similar. Up pops the chat-room window. Just like before, a window full of code will appear. Select the code and copy and paste it into the FreeForm Editor, which should still be there under the pop-up window. When you view your page now, there will be a link to your new chat room.
Message boards are also simple to install.
You can add a link to an existing message board, create a new one, or customize one with the same parameters as your chat room. Paste the resultant text into your page. The message board can be customized further after it is set up on your site. Additional baubles are added in the same way. When relevant to your site's content, these can be really nice features to include on your pages.