I have several different stores on different servers with different URLS and eCommerce technologies (Zen-Cart, Joomla/Virtuemart)

I want to use PayPal Express & IPN

Is there a way to have several different stores all pay the same PayPal account? Can I setup several eMail address' on PayPal and have each store pay a different eMail address, and have the confirmation page go to the correct store?

Rambling, but I hope someone here understands tha concept.
JOhn ><>