No, my code was merely to demonstrate the javascript code needed.
lets take the VehicleModel select list as an example:
<select name="VehicleModel" size="1" id="VehicleModel" onchange="WA_FilterAndPopulateSubList(rsVehicleStyle_WAJA,MM_findObj('VehicleModel'),MM_findObj('VehicleStyle'),1,0,false,': ')">
inside the form create another hidden form element named "VehicleModelname"
<input type="hidden" name="VehicleModelname" id="VehicleModelname">
and change the select list tag to:
<select name="VehicleModel" size="1" id="VehicleModel" onchange="WA_FilterAndPopulateSubList(rsVehicleStyle_WAJA,MM_findObj('VehicleModel'),MM_findObj('VehicleStyle'),1,0,false,': ');document.WADAInsertForm.VehicleModelname.value = document.WADAInsertForm.VehicleModel[document.WADAInsertForm.VehicleModel.selectedIndex].text">