I am also looking into building my own composite locator using the data provided on the Maps DVD/download. I was using the ArcGIS Online North American locator and it is no longer available in 10.1 SP 1.
There are a few locators pre-built in the Maps data, but they handle full addresses and postal data only. I need to re-create the functionality of the North American locator (Address, City / State, Street, Zip) in one composite locator using the maps data.
So far I haven't found any way to build the City/State portion of the composite locator based on this data. I don't see any table that links city and state in the same table. Any suggestions or guidance would be appreciated, and would probably help the other poster as well.
Thank you!