It means that he downloaded the AUM because he thought that it was the new AUM. Then he saw that it was the old AUM but decided to read it anyway. So while he read through it, he saw the screenshots of the game and bought it via Amazon (you know, this small indie plattform where they sale stuff).
Obviously this was Georges intention because he wanted to promote this awesome game and thats why we all downloaded the old AUM and bought Daemonica via amazon. I'm sure that all three (George, Amazon and the developer) made this plan together. They are so evil!

Needles to say that I also downloaded the old AUM.