Here are some rules for using the Ogre/GEV rules for playing World War 2 games.
rules
Pharaoh Rides To War
Pharaoh Rides To War is a set of rules for 20mm battles between Egyptians and Assyrians.
Age of Marlborough Modifications For Age of Reason
Warflag has some modifications for the commercial Age of Reason rules to allow you tu use them to fight battles in the Age of Marlborough.
D-Day 1/72 Scale World War II Miniatures Rules
Brian Gills D-Day Rules are designed for 1/72 scale wargames miniatures.
Bugs Miniatures Rules
Brian Gill offers Bugs!, a set of miniatures rules for staging battles with large numbers of plastic insects.