Ok, lets see if I can help ya out. I take it the mIRC is installed on your machine and you can get it to at least run.
First, go to the Graves’ disease page, “Main” at the top of this. Scroll down and you will find a link to the registration page. Follow the instructions there to register.
To use the mIRC, get online like you do with your browser. Once you are online, then start mIRC running. YOu should then be able to connect to the server “www.support-group.com” as per the instructions on here.
Does this help at all? See if you can get this far with getting connected. e-mail me if I you have any questions.
Bruce