Business Directory Website builder with simple shopping cart

I have a php script Run very own cms driven online website builder... I want to add some features like simple shopping cart and business directory... Checkout my site : [login to view URL] Signup the website and check script features..u want administrator username and password contact to me,.. I want add additional features and modification 1.) add slideshow (or) static banner 2.) add youtube videos 3.) customer bought domain, design publish to client's ftp than auto upload to client's own domain 4.) Script have paypal gateway, i want alternative gateway like payu, ccavenue, ebs 5.) Script have image gallery but i want album with category wise 6.) script have product catloug (free user). I want Online Store + Shopping Cart for ( paid users) product catloug .... i need the simple shopping cart integration 7.) Simple directory with category wise with search option