I have uninstalled JFK V1 as per instructions but the Addon Manager does not give me the choise to install V2.
The Addon Manager is never used to install a product. The "Reinstall" button starts a wizard that helps you reactivating a product after a
PC Reinstall.
To "Install" JFK V2, you must download the JFK V2 Installer from the JFK V2 page of our site, and the launch the installer, same as any other Windows product out there.
When I click on JFK from the drop down menu, my only possibility is to reinstall V1. What am I doing wrong?
That's normal: since you haven't installed JFK V2, your Addon Manager doesn't know anything about it. It will appear after you download and install JFK V2.