Unregistered version online worked, not this one

So I bought this for 2.99 and it didnt work at all. Then, I downloaded the free version online with the watermarks and it worked fine. Now, I cant register it even though I paid for a working version. To register, the online download purchase sends you an email with a key but the Mac apps version does not. So the compatibility issue is solved because I now know that it works, just not the one on the Mac apps. Get me a registration key for my 2.99 purchase!

What in the about Autograph