Please check your order email and you will find the registration code and the url of full version inside.
the registration code is like this : xxxxxx----xxxxxxxxxxxxxxxxxxxxxxxxxx
the full version download url is like this : http://my-dvd-creator.com/xxxxxxxx.exe
Please download the full version and install it(just overwrite original version will be ok). then launch the register window and enter the registration code into the text box like below:
the press register button to finish it.