Have a read of
https://jalbum.net/help/en/Moving_jAlbum_to_a_new_computer
If you have copied the projects (default is a folder called ‘My albums’) and you save the project settings within the project folders, then you have all the settings in place. Default settings are stored under the jAlbum configuration folder.
Also, it might help to read
https://jalbum.net/help/en/JAlbum/Where_are_my_files