RobotStudio event

Upgrading to 5.13 from 5.07



All,
 
I am new to this forum and I need some help. I am trying to upgrade a few robots from Robotware 5.07 to robotware 5.13. I am getting an error when I download to controller, the error says :
"There was an error while trying to copy files. One or more of the following could have happened:
-The Robotware version of the system (or Robotware files) has been removed from the Media Pool.
-The Media Pool used when creating the system has been moved or removed."
 
When I checked my media pool I do notice that I don't have Robotware 5.07. If I need to have robotware 5.07, where can I download it from?
 
Thanks in advance!