iboutique mod

I have iboutique, and I would like to mod the product with these changes, it is a ecommerce site with shopping mall that others can join and it shows products from their websites as well. I need the script to be modified so that people can register without buying a product, Ad product to wish list, use coupon code when they purchase. I also need to be able to add a drop down to the order form that shows sizes and colors when they are available. [login to view URL] that is a link to the product as it comes from the maker, but I need this mod and then I would also like to mod 20 templates and offer them to the customer for a changable amount that we pick from the main mall site. I also need a bulk uploader for products in the various stores that is easy to use, mabe a exel or csv file upload to a mysql table in the store. this is the whole project and thank you . please relpy here with questions