Find your Old ID to the toon you want First. By looking into Prefs/aoname/IDnumber/Chat
you Hopefully have chat logs. if you find your name in a chat log Multiple times its most likely That toons ID number.
Then in New Prefs Folder located in C/Users/Pcname/APPDATA Look for the new FC folder
you will see Pref folder. If you logged too many New ID's it will be more difficult.
To find whats your new Toons ID. Open Chat Config. and Click to log a chat window. say some crazy ****. Then log off. Go into the New Prefs folder with new ID's(Prefs/aoname/NEWID and look for that Chat log.
Once you have Found Both ID to the same Toon. Delete everything inside of the NEW IdFOLDER. DO NOT DELETE THE IdFolder itself. then Copy over everything inside the Old ID folder.
Appdata\\\\
funcom \\\\\ Oldprefs
AONAME \\\\\ AOname
NewID folder \\\\ OldID folder
Delete insides \\\\ Copy over insides to new ID of same toon
If you have no Logs at all
you have two choices
Redo it all or check the painfull way
Painful way: when you know which Char ID is the new one, and you're looking for the old one....
Go into Every Old IDfolder. and copy the Insides into the NewIDfolder 1by1 till everything loads up... Log on/off with one set of old setting... till you find it
process of elimination.
SIDENOTE: Turn of XP gain on Twinks. it will be Reset. that and Mentor invites...