we manage 4 to 10 websites. we use pinnacle cart and cs-cart as our shopping carts we need some one who is expert in SMARTY, PHP css code to help with a change on checkout page to show related products. functionality implemented in previous version of shopping cart need to migrate to newer version of shopping cart. i will provide previous code and line by line change where we made you just need to implement it in new version. CHANGES required to only CHECKOUT Page. email me i will...