Media Center Studio is a free application for Windows Vista and Windows 7 that enables you to customise Windows Media Center. It is the successor of MC Menu Mender, bringing it up to date for Windows 7 and adding support for theme application and editing.
Feature highlights:
Edit your start menu - rearrange or disable native menu items
Create your own menu strips, and your own items to go in them
Monitors your application and returns to Media Center when it exits
Set up a button on your remote to exit your application
Create menu items that take you to native Media Center pages, or start media
Apply themes to Media Center
Create new themes or edit existing ones