Customer's email address in order creation notific

I would like to have the email address of the customer displayed in the Order creation notification email that I receive when someone creates an order, next to his address details. Is this possible?

You have to edit it via the menu System > Emails, then edit the mail "order status notification".
It's available in the business edition.

Ok, thank you. I may have to upgade then, I have the Essential version now.

In the mean time I checked your demo site and I noticed I may have to update the PHP code basically. Could you tell me the code for displaying the customer's email address? It's not fully obvious to me.