upgrade to Leopard lost all approved email addresses (!)

[Silks]

Just upgraded to Leopard (finally...). When I did, it lost all the approved email addresses in my kids' parental controls settings. A lot of them. Not only do I have to re-enter them, I don't even know what they were.
Might they be on this drive somewhere but I can't find them? Might they be in a file on the drive that I could somehow point to?
Otherwise, this was pretty significant thing that the OS upgrade dropped through the cracks.
Help!

(P.S. I have a complete SuperDuper backup of the drive before I upgraded. IF all else fails, is there a file somewhere in that backup where I can pull the list from?)
Thanks in advance for any help anyone can provide.