Adding contribution to existing oscommerce website

I would like to have the following contributions added to our existing oscommerce website; 1. [login to view URL] based on lightbox, you see only 1 picture at the product page but as soon as you click on the picture the lightbox will pop up, giving the viewer the ability to slide trough several images, right to left or vica versa. 2. add in the admin-orders page, next to the existing colums (Customers, ordertotal, date purchased, status) 2 colums showing the product purchased and the zipp code of the customer. 3. Redesign the invoice created automatically by oscommerce. I will provide the desgin, your job is to implement the design into the code. Also the order number and purchase date must be added to the automatically created invoice. 4. Redesign the package slip. I will provide the design, your job is to implement the design into the code. The design which needs to be implemented is uploaded. In the near future I will also need several new options added to the back end admin.