Thanks to Maverick for Win7 you will change the look of Windows 7 and will give it that new look of Ubuntu 10.10.
This Windows theme offers many different items: fonts, buttons, wallpapers and theme colours.
Te basic installation will change the windows colours and the wallpaper, but you can go further and change buttons to convert Windows 7 into Ubuntu 10.10.
The result will be as having all the power of Windows 7 under the aspect of the elegant Ubuntu Maverick. Amazing, an Ubuntu Theme for Windows 7.