I am almost at the end. Trying to open the door with the cylindar lock. Our hero keeps saying that he is missing some info. Have noted the pictures and the numbers on the coffins. Have gone back over the walkthrough and can find nothing I have missed!! Help!!!

I love this game. Especially since I use a walkthrough to play games. But, I am stuck. I cannot get the dowels filed. And, the nails won't stay so I can nail them. The first dowel did file but the rest won't. What did you do to get this to work? Thanks