I am looking for someone to build a login page that a user will see after they pay for an item using a one page [url removed, login to view] billing page. after payment is made the user will be prompted to enter in their email address. this will check against users in db who have complete purchase. if user is not in db, then error message needs to be displayed. if user is in db, then user directed to specified page.
i need to see samples of work.