I found the parent link for this promotion. It allows you to choose your country of residence - US; Canada; UK; and China, although it is not in the T&C's. Here is the link:

http://key.holidayinn.com/

I'll tried the link with Canada as Country. Although it asked for state and zip code, I entered my province and postal code and it worked. Unfortunately, I didn't win, but the link works. ^

Good luck to everyone.

mxm135