Hi, I have a product for $30 which should pay 25% commission to affiliates - but the product has a tax rate of 20% so the person BUYING the product pays $36 ($6 in tax) I collect that $6 for the tax man so I can't pay any of it out in commission but the affiliate system is issuing $9 in commission when it should be issuing $7.50 (25% of 30) how do I make the affiliate system pay out on on the subtotal (EX tax) instead of the Total (INC tax)? Thanks! EDIT: just found the function add_affiliate_commission in aff.inc.php which sends the variable $amount (this is the INCLUSIVE of tax figure). How would I get access to the EXCLUSIVE of tax figure to send instead?