Joomla Virtuemart Shopping Cart Module Modification

Two tasks: 1) Modify the shopping cart module with delete button The website use mod_vm_s5_column_cart_AJAX as shopping cart module. It works beautifully. However, it doesn't come with a delete button so we would like to modify that with a little cross button before the product. Also it need to be AJAX effect. Which means no page refresh. Please see attachement "[login to view URL]" and "[login to view URL]" 2) The website do not require user to create an account before they can buy as we have setup Virtuemart with "no account creation" in the setting. However, for returning customer, we would like to retrieve the previous details (company name, name and address) from the previous order so the returning customer do not need to retype those infomration. They just need to type their email address. Please note that we also modify the order sequence. It is slightly different from the transitional trade sequence. User require to type their name and address first. Then redirect to product list page. Once there has product added in cart, then go to checkout and confirm the order. Please see attachment "[login to view URL]" I need some you to have Skype available. Read through and understand my requirement otherwise don't bit. Thanks.