I've been looking everywhere for some clues on how this is done. No luck so far. Can someone tell me how its done or know of a link to a tutorial please?

The Effect is the large white/blue smokey streaks behind the players at this link: (CLick on the players top right to get to NIKEFUTBOL.COM at this link): http://www.nike.com/latin-america/es...dex_flash.html

Jas