The B&W filter page now works as expected (though note, not all snaps there are actually black-and-white, since you can choose the level of actual monochroming when applying the filter).
The inhabitants pagination has also been fixed up reeeeeeal nice.
Thanks for the fixes! One last minor issue is the "snapped this at 4:00pm on August 12, 2012 with the B&W Filter" link goes to /bw_filter instead of /bw