Topic: Photoshop error 8000

I purchased simple viewer pro and tilt viewer pro. Have followed instructions, have installed the latest scripts for photoshop cs3. When I click to start creating the gallery i get this message from both tilt and simple viewers in photoshop during the creation. Error 8000: Cannot open the file because the open options are incorrect, Line:925. open(fileList[i]);

Help would be appreciated. thank you.