Order Confirmation System

I need a system to confirm sales to my affiliate site. I need a system that confirms that the sale was made from clickbank and automatically sends them the bonus from making the affiliate sale through me. This system would be similar to amember and similar scripts but without the sales process. This is how it would work: costumer submits their name and email through my site (this goes to my autoresponder), once this is matched with the information received from clickbank's instant notification services (more info on this here: [login to view URL]) the login and password for where they can collect their bonus is sent to them. I need this to be done in a way which I can install it on multiple sites. It doesn't matter if this script gets hosted on one site or on many (e.g.:I had to install the script for every site created). PHP for this is highly preferable.