Coupon website

I need a coupons website. it has to be dynamic, .net or php based. I would like it to be similar to this website? [[login to view URL] ][1]the coupons must be organized by zip code (or state) and category. the website must have 5 pages:the front page,contact us,about us, search page based on zip code and then on category, and finally, an? administration page to manage the adds and coupons, it must be password protected. i need to be able to add coupons under the right category and zip code and state. also it must allow me to upload the picture file of the coupon. the distribution of the categories can be taken from this website? <[login to view URL]> after the search by zip code or state, all the categories must be displayed in the left to choose from. then after picking any category, all the businesses under that category must be displayed it's a simple website, but? it must be well designed and have a professional look. also i want it to be searchable and easy to pick by the search engines.