The tutitorial can be found at chicaandjo.com It is a very long tut, so it's best just to go to their web site and follow the instructions. I put my laptop in front of my sewing maching and took it step-by-ste.
It basically just stands on its own. However, I used an extra 3/8 x 5 1/2 piece of board glued on the bottom and then sewed it on. I got the board in the art department at Michael's. It is very stiff and does not bend. Hope this helps.