Looks great.
The animation from the clips I saw were really detailed and the shading was pretty damn fine.
But just a thought for when you do make the final copy just do as much detail as you can in the backgrounds, like you can have the most random storyline ever but if the flash at least "looks" nice then it's almost always going to have a good score.
Anyway the trailer as a flash itself wasn't very good but I'm really looking forward to the finished version whenever you get it finished. =)