click on the readers rig section and then rig click on "Manage" it will be in blue letters the whole phrase will say Manage my gallery. Most of the steps from there have directions about how to create a gallery and add pictures. It is helpful if you have a program that you can resize images with and convert them to . jpeg's if they are not already. I use Paint Shop Pro but there are about a hundred of them out there and most computers will already have one or another. Let me know if you need more info from there.
Good Luck
Jon