Credit card module to send order email and invoice

[greek_batter]

Hello,

 

I am developing a credit card module payment for prestashop 1.5 (Actually I try to migrate it from 1.4 to 1.5). How can I make it to send email with the invoice to the customer on the completion of the order?  

 

Also how can I make the order to appear  to the back-end? 

I suppose there is some difference between the two versions of prestashop..

 

Thanks a lot,