You do not seem to understand my point, since in a way I'm only trying to help. If you have a version that works, then you must also have a file called key.exe. Since you're not working with the trial edition, you must have a key file in your gamestudio directory. Double click on it and it will extract some files into your 3d gamestudio directory. Search for a file called password.txt and there you go, there's all you need to download any A6 updates ...

If you're working with a version that has no key.exe, then it must be a warez, very simple ...

Edit: I've tried your demo, technically it's pretty good, quite realistic indeed. The visuals need some work, it's not looking superb, but it's not bad.

Cheers