I take it you have tried the largest video available on
NASA's site (640x480 dpi)?
There is a fair chance that the animation was made by a team of people at FIRST. I'm not sure of who specifically coordinates that, but there is also a fair chance that he/she is not on CD often (or at all). Try contacting first
here. They have a phone number you can try for a more immediate answer.
Edit: I feel silly. How could I forget about Dave Lavery?