MSN is a great website that hosts one of the most powerful search engines of the net, and also a tool that allows to chat with your friends. This tool is very popular and it's named Web Messenger.
How to manage it? Just find the "web messenger" link on the big tab with all the options, and click it. You'll find out that there's a little program to download and install. Its use is not complicated at all, and of course you won't waste any time in reading instructions, be sure!
When it will have been familiar to you, you'll see how easy can be to communicate with friends, even if they live on the other side of the world!