Actually, you can just disregard the IPN instructions on our Affiliate Program Settings screen. We had intended that to inform us when you pay out commissions to your affiliates, but in practice that didn't work out as planned, so we're removing that instruction in our next version of Seller Admin.
Your affiliate settings look fine, but for simplicity's sake you can probably just delete/disable your product-specific affiliate settings, since you've set those as identical to your Common affiliate settings, so they really serve no useful purpose.
