As a VAT staffer you can probably consider the following list as 'official.' I had the fun duty of secretary during the judging sessions
Expo Winners
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Grand Prize - Nemutai Yatsura - Lee "Lostboy" Thompson
Drama - Versailles Paradise - Graven Image
Trailer - Mireille Bouquet: Noir Raider - DJ Izumi's SynMedia/Jamie Veenkamp
Romance - Insomnia - Jani Kauppila
Sentimental - Oratorio of Ghibli - AuN Studios
Parody - Rock Lee: Mentos Spokesperson - Dark Side Productions
Comedy - Naruto's United States of Whatever! - Mindwarp Entertainment
Pop Will Eat Itself - OMG Du Hast - Mr. Pilkington
Dance - Ah! My Destiny - GAS
Instrumental - Absolution - Allegretto Productions
Fun/Upbeat - A Perfect Day - Thomas Hare
Tech - Images - NHMK
Action - Matrix Opus - Wuwu
Twisted - An AMV Travesty - Joe Rice
Live Action - Peninsula Pomegranate Pendegrass - Kusoyaro Productions
Artistic - Key of Time - Alberto Gonzalez
Fight - Kill Spike - Tyler
Nostalgia - Only Time Will Tell - Studio Tarantella
Character Profile - The Hawk's Tallon: Judeau - Jeff Hudecek
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I think all but twisted were shown at the ceremonies. AuN's pro list looks complete but I'll double check it in the morning when I'm coherent if nobody beats me to it.