Ripped from Free Frequent Flyer Miles:
Many of Continental’s non-U.S. websites offer 5,000 miles for signing up for the program and taking your first flight. Language change can be made in the upper right corner. These sites say nothing about where you must live to get the bonus, and links to a signup website that permits registration by people living most anywhere in the world. I wonder what happens if a U.S. resident signs up via a non U.S. website. Worth a shot. (Thanks to Frequent Flyer Bonuses for these links.)
“for travel August 23, 2008 through October 30, 2008”