Hi Cameron,
First of all you looked of old scheme and you could see different DB fields between the versions.
Go to Cisco DevNet: Administrative XML (AXL) - Previous Versions to see your version's documents.
Try to use the API methods (not XML tags), for me its much more easy and I reduce my mistakes.
Take your time to look for methods as you see the AXL document in our community AXL you have a lot of stuff for that.
Good Luck.