Just log into mypresonus.com, click on the Products link (upper right) and scroll down past Studio One and Noton should be listed. Click on 'more details' and in green will be your activation key, near that it will show how many activations (if you have 5 used you'll need to create a support ticket for a reset.) Scroll down a little to find a link for the installer for the newest version. Keep your browser open (easy access to your activation key - I think you can copy/paste it) and download the installer, install Notion 6 and then open it and use the activation key to activate it when the prompt shows up at launch.
