I have had the same thing happen on a couple of my listings - while they were an active listings and even long after they closed.
There is a somewhat common scam going on where people take listings, cut and paste information from the listing, offer it for a significantly low rent, and try to get several people to pay 1st and last's month's "rent". Thus bilking money out of prospective tenants on a home they don't own or manage.
Your home shows on the MLS as listed for sale on 6/23/11. That's where they got the photo and data. You should have your listing agent call the Board office and file a complaint. The Board has people in place to handle this fairly common scam.
If I can be of any other help feel free to have your agent contact me.