view the full video here http://www.youtube.com/user/djorbitek/
I believe comet ISON perihelion time was at 18:13ish and not the current prediction around 18:36ish. Perhaps this is why no one sees anything on the close ups at the 18:35,18:36, 18:37 perihelion time.
Comet ison grazes the sun
The red marking is to indicate the area that I suspect is to be a motion blur of comet ISONs remaining tail which come to a point in the direction of what looks a solid mass and possibly comet ISON. I say possibly as I am not an expert!!