problems opening Raw photos in CS3

I have just gone through an extensive process of reinstalling Adobe Creative Suite 3 design standard and have successfully opened photoshop then attempt to open a raw photo. A box pops up when I click open Photoshop Raw Options the dimensions width and height are both blank Channels has count 1 in box and 8bits highlighted then header has size 0 in box. I have no idea what to put into the blanks in order to open the original raw photos as originally photographed. In the past in the old version that was on the computer I was able to open a raw image automatically without any impediment or added instruction necessary