Google maps real estate listings expert

Want someone who has or can write a simple script. php preferred. I have api keys, etc if needed. Make it work identicle to Google maps where: 1) you enter a street address 2) use the Google search options tab, select real estate what is displayed on Google is a map of the address you entered as well as real estate listings that are proximate to the address you entered I basically want to build this "listings" function into a frame within a simple existing agents webpage...all I really want displayed are the listings. Your script should automatically use an address from a static field on the same page (The address field is populated from our script as we add them) above the listings display frame...so the code is dynamic, relative to different addresses. Serious bids with working samples before freelancer is selected. DO NOT post generic resumes or you are automatically out. Code must be open, unlocked, and easily portable. Basically if you know how this page works, write me: [login to view URL];source=s_q&hl=en&geocode=&q=505+W.+Rock+Island+st,+knoxville,+ia+50138&mrt=realestate&sll=37.09024,-95.712891&sspn=32.197599,55.546875&ie=UTF8&z=15 Thanks. I look forward to working with you.