It seems difficult to get the system to send a confirmation email to someone who orders an item from your website. It seems that in order to set this up you would go to Settings -> Website -> Confirmation Email. By default this is setup as follows:
applies to: Sales Order
Email Config
From: {{ (object.user_id.email_formatted or user.email_formatted) }}
To: what do I put here in order to send to the person placing the order?
Also, shouldn't the 'from' field be set as the email address associated with my site (eg. sales@mysite.com)?