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The nice thing from this custom SVN repo installer is the XBOX Skin option. This will install the skins with an Textures.xpr file so it save a lot of memory

Extract to the SVN Repo Installer (from this zip) to: E/XBMC/plugins/programs/

Go to programs from the XBMC menu and run the script.

Tip: add the SVN Repo Installer to your favorites and run it from there to save memory.

Source: http://code.google.com/p/xbmc-xbox-skins/