Hi Richard,
thanks for your inquiry and sorry for late response.
Hello, I tried to use the demo without success: I followed the guide for making a new customer/seller (called ric ric) but it remains in "awaiting approval status"... I don't understand how to activate it, and why it remains in approval status if it is done from administrator in the backend?
I guess the demo site has set the module at "seller account approval required", so you need to log in as admin to back office to approve new seller account. To do so, you can go Employees tab, and then find the employee account of that seller and change the status to allow log in.
Following your guide I tried to access the menu administrator-->seller payment info in the backend but it is not present. It's me doing something wrong or is the demo not functioning correctly?
In PrestaShop 1.5x, it under Administrations tab and it is only available to admin.
Seller can set payment info at front store - My Account - My Seller Account - Payment Info tab
hope this clarify your questions