So I've attempted to do this myself; but it's time to ask the experts.
I'm trying to get it to link to an EFnet server and channel. So, originally I just changed the server to "http://chat.efnet.org" but that took away the added functionality of knowing the forum-users name and default channels I specified.
I can do it that way and just force people to put in their usernames and the channel; but I'd rather have that information in there already when they click on "Webchat" along with the preset prefix I've defined for them.
I feel like I'm close... and maybe just not using the correct original link because I noticed that by default it is -
http://qchat.rizon.net