2checkout account affiliate automatically basics buttons buy cart checkouts confused doesn ibn ipn link manual order originate overriding paypal program requirements settings side thx wanted

I've got an affiliate program set up with you - at least the basics - but am confused about the Paypal side.

Do I have to set up the IBN with Paypal? Are you guys using that for sure? The reason I'm asking is that I know the 2CheckOut stuff doesn't quite work the way you might think and so I wanted to see if the Paypal IBN was the same.

If I do need to use the IBN, can you include a link for me to read so that I see where to actually put this IBN where into Paypal?

Thx...

Our Cart and Buy Now buttons automatically provide our IPN requirements to PayPal with every order, overriding any manual IPN settings in your PayPal account for checkouts that originate from E-junkie buttons.