The numbers showing on that site are often not accurate because they may show just what is owed on one lien when the house may have 2 or more. Also, homes are listed when owners are in default. It doesn't mean that they haven't caught up with their payments or may have sold the house already.
I'll be happy to send you a list of homes that have already been foreclosed and that are for sale. Feel free to contact me with your needs.