Task no.20: Magento fixations

Website is: [login to view URL] 1. Remove zero priced products from best sellers block 2. Fix the design of product page for tab landscape view ([login to view URL]) 3. Button "back to my account" in the following pages should redirect to dashboard page([login to view URL]) not "BACK" : addresses page ([login to view URL]) edit address page ([login to view URL]) add address page ([login to view URL]) my orders page ([login to view URL]) reviews page ([login to view URL]) edit account info page ([login to view URL]) and in all of them this button should have the same design and text, and responsive 4. last login for customers doesnt appear in backend and i need to see it and if he is on or off currently 5. When customer creates an order successfully , he should receive the "new order" email automatically 6. In the sales page in the backend, part of this pop up windows (2 windows) doesnt appear and it should be fixed ([login to view URL]) 7. if customer sign-up and checkout at the same moment from checkout page, and he used an invalid email address for the signup, order shouldnt be created until customer use a valid email address 8. emails design to be enhanced as shown in the attachments