I won a cash prize and I need help on how to file my tax papers.

[AnaBackwards]

Hi! Back in August I was notified that I won $10k from a random drawing I had entered. It was the prize for a campaign of a renowned electronics brand, and the contest was being done by a marketing agency from the UK. So they wired my money and everything, but now I need help on doing my tax papers.

I'm a full time student and I don't work, so I've never filed taxes before. Basically the only money I "made" on 2010 was what I won. It would be great if you could tell me what I need to do, in baby steps

-Ana