I tried to purchase the Multimedia Fusion 2.5 Macintosh version. I logged in filled out all the required fields. I got to the payment method and it said I needed to login. Do I need to have a separate account for the store or something? I don't remember my PW. My email in my account section shows its the same one I am trying to login with to purchase, but comes up with an error and says I am using a wrong email address.