A certain file - ackwed.dta - in your folder was apparently not updated. It's responsible for the version number. This can happen when you've accidentally set it read/only, or when WED was still running during the update. The update process should give an error message in that case.

Make sure that the Gamestudio folder and all files inside are writable, MED and WED are closed, and you have administrator rights on your PC. Update again, and check that you don't get error messages.