Here are my thoughts on the issue.
It would be nice to allow the publisher to choose from 3 optional payment thresholds that the admin has predetermined. For example, if the administrator was able to provide 3 choices for the publisher to pick from (say for example $10, $20, $50) and once the publisher has reached that payment threshold, then a paypal link automatically shows up in the admin panel for the publisher to be paid. Once admin clicks on the button, it takes him to a paypal page that sends a payment to the publisher's paypal email address.
I don't know how complicated that would be programming wise, but that's my thought on how to pay the publisher. I have a similar system on another website where I have to pay people to post articles and I could let you take a look at the code there if you like for some examples. It's coded in PHP.
