Photoshop Elements Serial Number Deactivation Question

I bought Photoshop Elements 8.0 a few years back and have been using it happily and successfully since. However, I have now run into a serial number activation problem that will not allow me to use the software. The error given is: "Our records indicate that this serial number has already been used to set up and activate Photoshop Elements 8.0 on two other machines, which is the maximum allowed."

Of course, it is simple enough to deactivate a computer if that computer is accessible, but therein lies the problem. One of the two machines that is taking up my activations is my old Macbook, which experienced a total motherboard failure in March 2-13. I restored onto my new Macbook from a Time Machine backup, but when I did so, PSE required me to re-enter my serial number. This was easy enough, but it considers this new Macbook to be a third activation and thus will not allow me to use the software. And, of course, given that my previous Macbook is dead and gone, I cannot access my old Macbook to deactivate the software there.

What can I do to solve this?

Computer specifications: Macbook Pro, 15" (bought 2013). Mac OS X Version 10.8.5. 2.6 GHz Intel Core i7 processor with 8 GB of RAM. The software is Adobe Photoshop Elements 8.0

Thomas Yee — Nokareon@gmail.com