Command Centre will only show a product that was installed using it. For this reason it is not necessarily a reflection of what's showing in your online account.
If you want a program to show up in the CCC you need to install using CCC if it is a compatible product.
Eg Sonar X3 is not but Sonar artist, Professional and Platinum are as is Dim Pro Z3TA 2 Rapture and many other programs and plugins. For products that can be installed through CCC but weren't you have to weigh up the time it takes to reinstall those products including sometimes large sample libraries through the CCC.
If you take the time in the end you'll have a neat installation of all your Cakewalk products and you'll be notified of all updates which can then be done at the click of a button through CCC.