Quote: " So that indicates to me that all the stuff I think I've lost is on there somewhere, but I don't know how to bring it back."
That is an encouraging sign. Since you have Tiger OSX, did you do a search of your internal hard drive with Spotlight?
You could also download this
free utility "EasyFind" for Tiger. It is an efficient searching program that is not difficult to use.
http://www.macupdate.com/info.php/id/11076/easyfind
It is possible the iTunes and iPhoto folders are buried in some obscure sub-folder.
Give it a shot ..... it can't hurt!
DIXIE 🙂
P.S. I would first Repair Permissions using /Applications/Disk Utility/Repair Disk Permissions
Message was edited by: DIXIE