Fix my prestashop website

So I have been working on a prestashop implementation for a ecommerce site: <[login to view URL]> The problem is that the template has serious flaws rendering on Internet Explorer. I have tested on Firefox and Chrome and it looks perfect. Here are the points they found: 1. If you select one of the categories, "Groceries'' for example, you notice that the text "There are 8 products" is placed exactly at the division between the yellow and blue fields. This text should be placed either in one or the other field, from the esthetic point of view. 2. When you see all the products in a row (for example in category "Groceries") we notice that the buttoms "Add to Cart" and "View" are not aligned with the neighbouring products (in the vertical direction). 3. In the yellow field in the home page are placed the products from the "Home" category. We noticed that the correpondent photos are superposed by the category bar. They should be correctly placed, and we should be able to influence the size of the pictures and its placing; this does not seem to be the case. 4. The "add to cart", price and description for these articles could be better positioned at the bottom of the product, instead of on the side. As you can see, all points are Internet Explorer related. Is it possible to fix this without messing how is it rendering right now on IE and Chrome? In your bid, please let me know how long would it take you to complete this work. If you do not include this information, your bid will be ignored. Thanks,