You are registred for Producer, here are 2 links:
Don't worry if you still have
"Please fill-in your serial number
To access the download section, please fill-in your serial number. Go to your "user control panel", in the "profile" section and enter your serial number "
It works for me it must work for you.
Download link is at the end of the message!
If you still don't see it refresh your brownser with F5 or use an another brownser (firefox instead of IE or IE instead of firefox) It's a cache problem with your brownser.