We are switching to a new chatroom that is now integrated with the forums.
To access the chatroom you simply need to click the yellow "Chat Room" link in the main menu bar for the forums (where "User CP" through "Log Out" is listed).
The first time you enter the chat it may prompt you to log in. The chatroom is tied to the boards so you use your same board user name and password.
Please take some time to check out the new chatroom and post any questions, concerns, comments, etc. in this post so that I can address them and/or add them to the new chatroom FAQ thread that will be created.