Hi Kirk... I'm afraid the issue is still not resolved. I too hve been trying to upgrade today(as recently as five min. ago) without sucsess. Your SSL certificate is deemed as BAD and appears to be issued to a different web adress, and not by a certified issuer. Additionally the webshop rejects my Email/password as invalid when I attempt to log-in even though my current licence is good through Aug(invoice date aug 7 2010)
This is also not just PAYPAL specific, I use a Amex for all my software updates.
Hope this gets resolved soon... got a new laptop in need of PhotoMech5;-}
Thanks, Ned