This is the problem with paying for unofficial apps that require a hack to work. This guy has no obligation to you. He doesn't have to answer your emails. It's something you use with the knowledge that there is a risk it won't work or something may go wrong. Now you're out 7 bucks and lookingf or answers for unsupported software.
I hope you find the answer to your problem, but next time wait till the official, supported apps are released before shelling out cash for apps with nonexistent support.