Download the new repository and install the Add-ons> Install via ZIP. Then select Get Add-ons, choose Repo Aeon MQ> Skin and select Install. At the end of the download is normal to get a black screen for a few seconds, this is a feature of XBMC Dharma 10. If an error occurs just install again. This version does not overlap the previous version.
This skin has two ways of updating: 1 - Updater, it only refreshes the revision of the skin. The check for updates is always done after 1 minute you open the skin and then every 6 hours with the skin open. A popup appears informing the update and then reboot to be able to apply the changes. 2 - Repo add-on, like the other add-ons updates the skin when complete, will be used only when you have a new version of the skin.
Download one of the theme files (they are self-extracting file) Execute the file (i.e. double-click) and it will unzip the theme files to the correct location on your hard drive. Run xbmc, open skin SETTINGS > APPEARANCE and select the theme.