Crear una tienda virtual

I need to fix some bugs in our prestashop [login to view URL] - The images does not display in blog (fist page) - The ebay module upload to ebay one product by size or color (must upload one product with the attributes) - The block layered navigation do not update the products when user chooses a size, color, etc. After this job completion, we will contract the freelancer each time we need fix bugs or minor developments. Only real prestashop experts with PHP knowledge.