I am implementing in-app billing in an android game. I found that the developer web pages have two completely different guides on different pages. This one seems to work: Preparing Your In-app Billing Application
This one I have not been able to make work: Implementing In-app Billing
I don't know why they show two different ways to do the same thing and I want to make sure I'm using the right one and if there's a difference between the two.