BattleGround Ardennes v1.3 upgrade instructions:

1-Download the upgrade file into your BGA (or main game directory if other name was selected
  during installation).

2-Run the upgrade.  The upgrade will update each file and a message will appear when updating
  is complete.

If you have any problems (Old File Not Found), delete the current version, re-install from the
CD and then run the ugprade.  Altering of scenarios or other files will cause the upgrade
program to stop.

Ken
TalonSoft