Sorry for the inconvenience the streaming flash has caused some of you. You really do have to see this trailer, as Heather said, it's fabu-tastic!
So, you can get a quicktime (25MB) here.
The way the voice actor did the "Stupid Stupid Rat Creatures" line was horrible.
It might be a wild guess, but it's possible Thorn was only shown running briefly because her model's still being fine-tuned. Any fan knows that she has to be very expressive, so they're still working kinks out.
Err, the scene is from Out from Boneville. Check it out.
EDIT: Ah, there is a similar scene from volume 2. That must have been what you were thinking of.
Does the color add much? I have the one-volume black & white book...