Instructions
Open XBMC on your Xbox.
Select the "Systems" tab, followed by "Add-ons," then "Get Add-ons." This will lead you to the XBMC Add-on skin directory, where skins are located.
Select "XBMC.org Addon-ons," then select "Skin." Search through the list of available downloads for the Aeon MQ skin. Select the skin and download it. If the Aeon MQ skin is not available, you will have to install it manually.
Download the Aeon MQ skin online and save it to an Xbox flash drive.
Insert the Xbox flash drive into your Xbox.
Open XBMC and select "Install from zip file" to unzip Aeon MQ from your flash drive.
Wait for a prompt window to appear after installing Aeon MQ from online or after unzipping the files from your flash drive.
Select "Yes" to the question of whether or not you would like to use the new skin.