Rules for voting:
1) Review the entrants (I advise to bring up a notepad for notes and whatnot).
2) Rate the entrants.
3) Post your votes in this format (this is for easy counting as well):

Category #1: (ex: Category: Humor)
Entrant #1: (ex: Entrant: Link2000)
Vote: (ex: 3/10)
Reasoning: (ex: not very funny, but I did understand what you were trying to make funny)

Entrant #2: (ex: Entrant: Planeswalker Accountant)
etc. Repeat with Category #2

4) Hope for the best.