Drupal 7 Ubercart Rules - Mark order as complete automatically - repost

I have created an UberCart store within Drupal 7, when i complete an order through Paypal the order should automatically assign the user account a number of points using the userpoints module, however this does not occur automatically and requires the administrator to mark the order as complete. Also the user must click to return to the Drupal site from the Paypal payment complete page otherwise the order is not marked as "payment complete", obviously if the user closes this window the order is not completed in Drupal and they don't receive the points. The admin then has to claim the payment and mark the order complete manually. I think the problem is with the Rules module configuration and the Ubercart / Paypal API, with possible config issues with Paypal. Deliverables: - mark order as "payment received" once payment is completed, even if the Payment complete window is closed without returning (or advise on paypal settings) - automatically mark orders as "complete" upon payment complete, and assign the points without any manual input from the admin