Is there any msn codes like to make it look better that kind of things?

If you're still using MSN Messenger, upgrade to Live Messenger. It's much better, more features, and free. http://im.live.com/





WLM by default has a color picker you can choose (the Paintbrush icon). You can also get more colors as well.





Messenger Plus Live also contains skins. But you need to download the package first : http://www.msgplus.com/download/





Then browse around the site for skins.