I finally got some time to take a look and found the error with my data patch, which should now be fixed.Here is the new version of the installer.
http://sierrahelp.com/download.php?f...unnerSetup.exe
I am a bit surprised that the link to other installer has not been removed by a moderator as it includes most of the game's main data file and should probably be considered an illegal download, i.e. a link to abandonware.