I have the 4.1 game center files (.app folder, updated N72AP.plist) and a file called gamed which goes in usr/libexec. Looking at this file in Notepad, I need an extra folder called gamekitservices.framework. Can anyone provide this?

All that happens at the moment is the app launches and crashes straightaway.

The last thing I want to do ATM is update to 4.1.