I haven't done this since Mint 11 and obviously some things have changed.
I have a HTPC in the living room running XBMC on XP.
(Only because I can never get the Linux version to run smoothly with my particular hardware.)
My media is on an NTFS partition on my Mint 14 Cinnamon office computer / media server.
Personal File Sharing has the network option grayed out because I'm missing something.
What do I need to add or configure to get this going?