How can I get some support?? I want to upgrade and I literally cannot!

The process to get back missing products is here http://forum.cakewalk.com/FindPost/3148924
The short version in your case is email http://www.cakewalk.com/Support/Email/AccountHelp
 
 

When the single sign-on thing happened oh, a year ago I had none of my old products either as did many others due to email address discrepancies. A simple email to them explaining the issue was cleared up in within 24 hours for me. Keep in mind there is likely nobody around except a coder or qa person there on the weekend so patience, patience and you will likely get what you need.

These forums are full of really really helpful and knowledgeable folks - and the other poster was correct in that while Cakewalk folks are not likely present on the weekends - they have indicated giving folks with upgrade/purchase/registration issues an elevated priority in their response approach, and you will likely get all squared away pretty quickly.
 
They had posted about the changes in their system that you are affected by, but for folks who didn't visit the forums to know about it, they too got caught with old email addresses and such.
 
But yeah - hopefully they will see your plight early in the week and get you all set.  I ave asked them to do so for friends of mine that just don't logon to things like the forums when everything is working, so they too missed the advance notice about the changes.  They got fixed up within a couple of days.
 
Bob Bone