PHP Dpwnload Script / Shopping Cart Installation

I have a shopping cart and download script that need to be installed and integrated into my website. I have had this installed on several sites already. This is a very quick and easy installation for someone who knows PHP/MySQL. The provider must install and integrate thefollowing: (1) - The Shopping Cart Script (2) - The Digital Download Script for the Shopping Cart Quick & Easy money for someone who knows PHP and MySQL. The first reasonable bid gets the project. The scriptis currently installed incorrectly on the website at [[login to view URL]][1] . I had another coder from this site do it wrong and he will not stand behind his work. The basic premise of the script is this. The buyer purchases an item and is transferred to a location to download the product. I am then emailed the buyer information etc. The buyer is prohibited from downloading after a certain period of time and is monitored by his IP address. The script will be installed correctly before payment is issued. Actually with someminor modifications the script can be fixed that is installed.