There's a link at the top of the canadian board -- it's starts Announcement by webmaster (or something close to it).
There's also information about it on the resorts thread - if you go into codes and rates.
Even though we have AP's it's a good deal for us as you only need to get a one day ticket to get free food for the length of stay.
I think you have to book by July 3rd and stay between August 21st and October 4th. We are staying Oct 1st - Oct 10th so as long as you check in by the 4th you're ok.
The free dining is 1 table service, 1 counter service and 1 snack per person per night.