I just noticed that I was missing Pyro Audio Creator in my list of things that I own in Sonar? Do they just not support it and it goes away? I still have it and don't want to loose it if my computer should die. 

do you mean in your cakewalk store account?  if so, and it's not there, contact cake and they should be able to put it and the registration/serial numbers in the account for you.

https://www.cakewalk.com/My-Account/Feedback
 
Go to the account  feedback page and fill out the form. (see link above)
If you have Pyro installed, go to Editor/About and find your serial number and name and enter it on the feedback form.
Cakewalk customer support will add the missing Pyro to your online account products list.
They will send you a confirmation e-mail.