Ok download Mirc from here
http://www.mirc.com/- Once installed, open the program and click on "select servers" under the file tab.
- In the "IRC Network" window click on "Undernet"
- In the "IRC server" window click on "Undernet random US server"
- Click on the "connect to server" button and a new screen should pop up
- where it says "enter a channel name and click join" type in #zukiworld
Now you can chat the night away!
You can also click on the add button on the "mIRC favorites" window and add the #zukiworld server onto the list.  If you click the "join on connect" box it will automaticly connect you to the chat room everytime you start mIRC.
If you have any more questions dont hesitate to ask.