Adaptations to current site

We currently have a site in PHP and need the following to be completed:

1) Add a field where we can add product description
2) Add an area where customers can review each product, this will need to be edited by us in the admin area where we can remove reviews if we need to.
3) Add a voucher code area, where we can show customers a voucher code with start date and expiry date
4)Add a seach box to the front page to find product by name, brand, type
5)Add a buy now button
6)Border: add a product image template
7)Fix the allignment issue
8)Add a shadow to the background, it doesnt have a background at the moment.
9) Add an email capture box along the top within a banner where we can change the image