Hey Cathy,
Here is the info from the help screen.


Registered users must be logged in to use Community Chat.


How to use Community Chat
To be able to load Chat on your system you must first have Java installed. To learn how to enable Java, click here for Internet Explorer) or click here (for non-Microsoft browsers).
You must be logged into your ezboard account to participate in Chat.
In the upper right hand corner of every board with Chat enabled you will see a link: Join Live Chat– click that link to launch the chat room.
Once the chat window has loaded, simply type your desired content and press enter for others to see.

Marcie