If you prefer to use a "real" IRC client, download mIRC from http://www.mirc.com

You can also find generic installation instructions there

Install it.

Once it's installed, you have to set up the name and password you'll be using, and then a connection to this server.

Hit the Options icon and fill out the screen like this. Once you get that done, click the little "sun" and the screen will looks like this:

We're now going to add a server, so click the "Add" button and the screen will look like this:

Fill in the screen like this and click the "Add" button. After you do that, your screen will look like this:

You're ready to connect. Click the "Connect To Server" button.

Once you're connected, you'll get a "Status" window. In that window, type /join #rightalk [then hit enter]

The chat window should open up and you're in. This isn't rocket science folks.