Thanks for the response Monika.
I do have the PP_IPN v1.3 installed and it works fine. I didn't mention that in my previous post for that very reason.
Perhaps you answered my question in your reply and I am too dense to see it. My need is to ensure that customers are auto returned to osC after a PP payment.
I looked for your post but couldn't find a solution for this.
Have any of the experienced users thought about all of the bonus points they would get for making a straightforward tutorial on how to set this thing up and then putting a sticky on it? I love the fact that a forum is offered but my gosh, when there are a gazillion posts it defeats the purpose.