Google Maps & MySQL Integration

I need someone to help me to build an integration project with a MySQL database and Google Maps. 1- I need to capture those fields in the database (Company Name, Address1, Address2, City, Zip/Postal Code, State/Province, Country, Phone, Website URL, Retailer or Distributor) 2- I need a secure interface to Add, Edit and Delete the Company information. 3- I need an interface that will ask our web site users to enter their Country and Zip Code/Postal Code and if they are looking for a Retailer or Distributor, and to return the retailers or distributors that are closest to them, showing them with flags on a google maps web page. We need to be able to show those that are within 50 miles radius of the customer's zip code/postal code. 4- I need to be able to take you code and integrate it with my website (the code for #3). I don't care for the UI of #2 as it's not going to be shown to the public. 5- On top of the google maps, I need the query to return the list of store names and info.