I have stated this thread for users who are facing difficulty locating the Photoshop 13.1 and Illustrator 16.2 update. Please begin by going to Help>Deactivate and then close and reopen Photoshop. When you reopen please choose the License this Software option and enter the Adobe ID tied to your subscription. If you are asked for a serial number please contact our support team to verify your subscription status.
If you continue to face difficulties please respond to this thread with the operating system you are using and which updates you are unable to locate.