I would be very happy to assist you with your project. I am an experienced web developer and have extensive experience with creating custom WordPress themes, back-end interfaces, and websites. I'm not entirely sure if you're asking for someone to fix the shopping cart system, other pages, or a complete revamp. I would be happy to help with any of the options but the bid amount and delivery time would vary based on needs. Please reach out! I'm new to Freelancer.com and I'm hoping to shine with my skills so that I can build my profile here.