As reported by Glenys Hanson:
I've just recommended this course http://coolcourses.moodle.org/course/view.php?id=39 to someone but it seems to have become corrupt: images missing and dead links. It wasn't like that before: it looked really nice.
Seems like the problem was caused by the upgrade to 2.0. Any chance the site could be rolled back to 1.9?