Two days ago the pilot's report was published concerning the Aug. 31 incident. 20 minutes into the flight the low fuel warning light illuminated. They had 7000 in left, 1200 in right and 1300 in center. Fuel configuration was normal, crossfeed closed. They declared and emergency, opened crossfeed valve and shut off right fuel pumps. They landed with 7000 left and 1200 right, cleared the runway and shut down the right engine and had plane checked for fuel leaks. There were none. Planned landing fuel was 8600, actual was 8200. The cause of the imbalance was a faulty crossfeed valve that was open but didn't show open. Right fuel pumps had slightly more pressure than left causing imbalance. Fuel config light should have come on first but didn't. Looks to me like they handled it just fine. Too bad the controller didn't.