Perhaps you should try posting here before you go off half cocked.
Moved to the Sound/Visual/Digital Multimedia forum. I would suggest trying to learn a bit about what you are complaining about. It seems most things you buy end up in a paypal dispute.
Perhaps you should have followed their advice : NOTE: I strongly recommend try MyTheatre before buy.
Downloading the free trial version of any software before buying it is recommended. But I also dont see it mentioned anywhere that you have to buy codecs for it.