533749 Multiple Product Images in Oscommerce

I am in the process of setting up a site for a client using Oscommerce. My client would like to have his products display like on [login to view URL] When a user clicks on smaller images then the colour selection list should change to the color selected - also the main big image should also change to the image selected. With how long Oscommerce has been around im sure this has been completed hundreds of times!! The test site is [login to view URL] so you can see what stage its at. please put the text osc mad in your bids. Many Thanks PS this project is ongoing!! Future Work Likely!