Once you have successfully installed the extension, go to System -> Configuration to configure the extension for use. Here you can find various settings for the extension.
Email Quote: Option to enable or disable extension.
Email Quote Label: Set label of the button to open the Email Quote Proform on the product page.
Email ID of Admin: Enter a valid Email ID on which you want to receive emails.
Admin Email Template: Choose a template for the Email you receive.
Customer Email Template: Choose a template using which you want to send an email.
Email Sender: Select sender of Email.