Licensed CS5 installed on new computer and the ability to update is not available

I have a Windows licensed copy and key for CS5 that I have been using forever. I recently upgraded to a new computer and the installation (64 bit), registration/activation went fine. I can use the software but found out I can not upgrade CS5 to it's former self as Adobe considers it support. My goal is to simply bring it back to the state it was in prior to installing it on the new machine. Bridge, Raw, and PS funtions all brought to the most current available for CS5.

Moving to the subsciption based software isn't an option and I don't need the tools that are in the new packages. I simply use CS5 for post production of my raw images.

With the Adobe position on support do I have an alternative to reach my goal of simply getting CS5 to it's final version for updates? I attempted to upfate Camera Raw from 6.0 to 6.7 with a downloaded file but receive an error message. Any help would be appreciated.