I have finally managed to make the PayPal payment system working in one webshop, but when the customer place an order and pay with PayPal, then no order confirmation is sent to the customer and no email is sent to the administrator. But the order shows in the Order List and everything else is okey.
Why doesn´t it send the emails and how do I change that, anyone knows..?

Check email settings ins:
 
Administration > Payment Systems > 'Your Paypal Payment method' > Edit Payment System
- Parameter source 1 value should be your email address.
 
Administration > Payment Systems > 'Your Paypal Payment method' > Final Checkout Settings
- Check email notification sections.