Changes of online store that uses x-cart

Hello, I need to make some changes to an online flowershop, that uses x-cart software. These changes refers to: 1. in the left column i need to move up the login box 2. i need to create a right column where i want to place the sale top, the facebook box, the news box, the twitter box and the blog box 3. i need to improve the newsletter subscription so i can give a discount to every new subscription; 4. on the product page i want to display other products from the same category, but with the image of the product;