Recommendations are shown now for me, too. Not really movies that I liked, but at least it's working. The "Something wrong?" link at the bottom right is still a 404 though. :(
Have you explored the similarity between users? Recommendations are based on similar people. I usually use the user comparison view to check if I can trust the other user.
The user comparison view also shows you what the other user has seen and you haven't. Great once you trust the user to discover new movies.