Hi all and thank you so long for you help.
I have a folder on my PC under the pictures library, called "China" from my recent visit there. Under this "main" folder, I have sub-folders named after some places I have visited.
I have just uploaded these pictures via iTunes on my iPad 2, but the sub-folders were not respected. iTunes has dumped all the pictures in one folder called "China".
How do I keep the folder structure in tact when synching folders and sub-folders to my iPad?