I don't know what happened to the pic, but I can most likely help you, as I own both the cases you linked... actually, I'm the one who added them.
The games do indeed fit in the rack on the left when you have them in clear cases. The middle compartment wasn't designed for the GB Printer, it was made for the Original Light Boy, the compartment right above that was meant to hold the rechargeable battery. The top right was meant to the headphones / Link cables /ect. The bottom right held the Gameboy, and had storage under it for manuals and such.