Find the Hidden Themes in Windows 7

In windows 7,there are hidden international themes stored in a super-hidden folder.But how to Access the Hidden Themes? the following address in Windows Explorer:
%WinDir%\Globalization\MCT will find such as MCT-AU, MCT-CA, MCT-GB, MCT-US, MCT-ZA file under the MCT folder.
3.Now you can add them to the Windows Themes list in the Personalize applet.Enjoy youself!