November 5, 201015 yr I think this is it: Good luck! https://spreadsheets.google.com/ccc?key=0Ak2Ill9eR_EidG1WRTUyU0FXVkNqSXZPcnloVUtvSGc&hl=en&authkey=CJGdlIUD#gid=0
The link to the Xmas challenge spread sheet??