Address Lookup Web Applet

Attached is a Vendor listing. I want a web form in php that I can type an address into and find the closest vendor. I would like not only their information to show up based on the field attibutes in my spreadsheet, but also the mileage and directions to their location as well, so that I can print them. I would also like an admin tool to add new vendors. There should be a web form to do the lookup as well. I need it today.