Activation

On 8-5-2011 I downloaded and installed the 737NGX and have been flying it with only minor issues since then. But now I question if the activation was correct. On the 747-400X. MD-11X, and 748 one of the first things I was required to do was furnish email address, order number, and password. On the 737NGX I believe the installer ran and when I called up FSX or selected the 737NGX to fly I was asked for order code (3 letters and six digits) as opposed to the order number (6 digits). Does anyone know if this was the correct procedure? Thank youMichael Cubine