@crass84
If you previously registered your os.4.0 pre release on the old site, it may be a matter of transfering the registration to the new website (they call it converting your old registration). Here is a good place to start
Information for returning usersYou have to login, then click on "Product Registration" in the User Menu.
Then click "I am not seeing all my registered products".
You have to enter your old user name and password and click "convert" button.
---
redfox