Here is a quick guide how to setup your first in-app purchase. This will help you connect using the example provided in your examples folders.
I will do a step by steps tutorial after this one, for now this will connect your right away with the google playstore if you are short for time.
Make sure you connect okay first and test your app by buying your own product. So Set it to 0.99.
After that, just delete the events you don't need, they are very obvious.
1) Sign in your google devs account, I'm using one of my mine here.
Follow these steps.
Mine worked at the first try, but if you do any updates - sometimes it can take up to two hours for the new version
to show up on your phone.
Sorry guys I missed one image.
You need your dev key:
here is where you get the key
This is how you make the keystore. using the keygen Danny made.