Customize Store Locator Plugin

I have a site built using wordpress that has a store locator and also ranks each store on a 1-10 scale. You can find the functionality here: [login to view URL]~kidgrad2 Here are the 2 things that I need completed: 1. Users can submit new locations and rate them by using this form here: [login to view URL]~kidgrad2/recommend-a-place Once a user has submitted the form, I would this information to be approved or denied by admin within the wordpress administration panel. If a review is approved, then the data is added to the 3rd party store locator plugin with the rating. If a review is denied, then it is simply deleted. 2. The store locator plugin has already been customized to accept rankings for each store. However, if two different people rate the same store the ranking does not change (it remains static). I need the ranking to be updated/dynamic when a new person creates a review. So if user A rates a store 10/10, but user B ranks the store 5/10, then the overall rating of the store should be the aggregate of 7.5 I will be online during the project to answer any questions and help provide direction if any questions arise.