To get XBMC working
read this post, but pick the options for XBMC on F instead of XBMC on E.
If your friend wants to keep his current version of XBMC then you need to rename his current XBMC directory to something else, do the installation as described in the post above, but instead of deleting XBMC then replacing it with the latest version you delete it then replace it with the copy from the renamed directory.
If you want to put XBMC on E and keep his current version and its setup then follow the post exactly, but instead of using FTP to install the latest version you copy the version from F.
This post has been edited by Heimdall: Aug 26 2011, 08:57 AM