Thank you for your plugin! I resolved my problem with downloadable links, but i have error when i am return from paypal to my site. And i as i understand i have wrong settings of paypal hidden fields. Could u expain me what does mean next permalinks:
1. $this->get_permalink( ‘photos’ ) for notify url, because when i have changed it to shopping cart page, my downloadable links start to send to the customer
2. $this->get_permalink( ‘receipt’ ) for return field

Thank you very much!