Changes to Wordpress Site

I have a wordpress site ([login to view URL]). We need o make some changes to the site. We have a list of local businesses; [login to view URL] We would like to allow people to create their own business listings on the site. People would be able to login and create, edit, change, delete a business listing. They could select from existing categories but could not add new ones. They would be able to select from free, monthly, or annual membership. They will be able to create a wordpress page for their site, text, photos, links, etc. Any new business would have to be approved before being posted. The wordpress admin would be able to create, edit, delete business listings. We would like to integrate this with our exiting site. BEFORE BIDDING: - Please visit the existing site and review the existing business pages - Provide links to other wordpress sites you have created. - State the you understand all the requirements The job will need to be created by May 4th. We will need DAILY updates with the work progress. You will need to backup the existing site before beginning any work.