Hello,
We have had the same problem with the update from 7.1 to 7.2. I think that the database fields don't get migrated in the right way for the queries to work. If you run a clean install i think the queries should work wich proves the update of the database model did not go as planned. Could you do a clean inststall on some virtual server with the express SQL?
The last time i spoke HP about this problem the final 'solution' was a clean install, not what you would wish...