"Sold for $610,000 on May 17th, 2007 "
It doesn't say it is for sale anywhere that I can find. Are you sure it was on this site and not another maybe? Let me know if you need help tracking it down. The people that work at Trulia are very nice and happy to help, too, but sold data is pretty normal since it is public data and helps buyers and sellers see recent numbers.
Hope this has helped.
Bryan R. Lovell