You will need to place each of these codes into seperate pictures. To do so, go to "Upload / Change Photos," and click edit caption for the first picture, and paste one of the codes in, etc...
Adding a background <body background="http://tinyurl.com/d2k8v">
I used TinyURL to convert my long image url into a tiny one, cause photo captions don't allow very many characters. You can upload images using our Free Image Host.
Make your pictures table transparent <style>table, td{background:transparent}</style>
Making your background stay in place <style>body{background-attachment:fixed;}</style>