How do I upgrade Cross Numark IDJ3 v1.3.4

How do I upgrade to any of the newer versions of Cross? I have registered my product key in my user control panel profile. But, the download section of the message boards makes no sense at all.
Any help or links to the correct downloads would be really appreciated!
Thanks!
Daryl
Any help or links to the correct downloads would be really appreciated!
Thanks!
Daryl