Okay, I've followed your instructions so far. I've done the binding, put the recordset back to the original. Went into eCart and added a new calculation, called it ShipWeight. I then modified the confirm.php page to call that new calculation just like you told me to. So now what? I need to add a discount trigger, right?
Do I follow the original instruction? (this is what you originally said at the beginning of this thread):
When creating the discount rule, add the following trigger:
Number of Item With a Specific Column Value:
Number of items where [discountable] has a value 0f  is [>] a value of 
Do I add this trigger? Is that the only trigger? (you mention "AND")
What would the calculation be?