The company that lists those homes is taking public information and trying to solicit a fee for you to get more details. Typically the listings are pre-foreclosure or sherriff sale type homes. Buying from a sherriff sale is a little on the risky side for the typicall home buyer. So please be sure you know what you are getting into before buying anything that way.
If you need help with Buying a home in the area I would be glad to talk to you to see if I can be of any assistance. My office is in Warrington and I help Buyer's and Seller's throughout this area.
Take care. Hugh
Hugh Henry Jr.
If you would perhaps like me to send you some other good deals in the area, short sales, foreclosures, bank-owned properties, etc, just shoot me an email.
I am a luxury Realtor with Kurfiss Sotheby's. Best of luck to you!