Been there, found out. After surfing a bunch of short story sites on Google I found exactly what I wanted. Licensing problems were overcome, I sketched out a story board and I thought I was off and running. Then I found, as you did, narrative and dialog are different. I decided I really wanted a short screenplay. Somewhere I ran across Dan Decker's site. He teaches screenplay writing. A visit to www.screenwritersgroup.com was be enlightening (I'd recommend his book "Anatomyof a Screenplay" - no commencial connection. The result, I think I saw what I was doing wrong and got back on track. Best of luck. George