This is pretty confusing for new people but this is how it works. The source code that runs the server is updated separately from the DB that provides you with items, zones, npcs, etc.
So while you are running db rev 1751, the source code has moved on to 1828. In order to keep your server running smoothly, you need to apply all the sql updates in the utils/sql/svn folder from 1751 to current.
Current source:
http://code.google.com/p/projecteqemu/source/list