I've updated the first post with new information. DNS has propagated the address so everyone should be able to reach it now, and there's a web based client set up.
I've also added NickServ and ChanServ services, so you can reserve a nickname on the IRC server. Once you are connected do the following.
To change the default nickname to what you want,
/NICK (new name)
To reserve it for your use,
/REGISTER (password) (email address)
If all goes well then you have reserved that nickname.
To log in with that nickname later, change the nickname to yours as before, and type,
/IDENTIFY (password)
and you will be logged in.
If you are using an IRC client such as mIRC, and you've entered your nickname and password in there, then it will log you in automatically when you connect.
If you need help with any of the commands in IRC, just type your question in the channel that you are dropped in to.
Right now there are 2 AppGameKit channels active.
#agk-discuss - for AppGameKit general discussions
#agk-support - for AppGameKit support questions
The 2 other channels are KISTech channels. When you connect you'll be automatically connected to #discuss. From there you can type
/JOIN (channel name)
and you'll be connected to that channel. You can join more than one channel, and they will show up in the list at the bottom of the web client. Just click on the name of the channel to switch between them.