Your license is on its way to your email. Please check your Inbox and also SPAM folder for it. When you receive it, please follow the steps below to activate your PLUS version of the product:
Install the FLV Downloader Basic application from here if you haven't already done so.
Open FLV Downloader
Click on the Help button
Go to Registration
Enter the key from your email in the text boxe (you can also copy/paste)
Click Register
7. Done, your PLUS features will be activated in a few seconds!
8. Thanks again for purchasing FLV Downloader PLUS