You can change the look and feel of Yahoo! Messenger with Skins in either of the following two ways:
or
You can add new Skins by following the instructions located here.
Where's the Contact Customer Care button? With so many improvements to Messenger since the version you're using (lots more features and reliability), we figured you're ready to move up. So get your upgrade and with the new version, rest assured if you have questions, you’ll find that friendly button on its help pages.