The problem is at the very end. The 'Close Config Data.vi' changed between 6.1 and 7.0. The input 'Write Configuration File' on 7.0 and higher is default to True, any version before that was default to False. With this set to false, the file is not actually written.
So on 6.1, you need to connect a boolean constant or control set to True to this termianl to write the file.
Ed

Ed Dickens - Certified LabVIEW Architect
Lockheed Martin Space
Using the Abort button to stop your VI is like using a tree to stop your car. It works, but there may be consequences.