I don't have the answer for you, but have seen this question posted enough times to be able to give you the advice you need to "Get" your answer!
You need to pony up more info!
First; How much do you weigh? important!
How tall? Not that important but might have some relavence.
What do you hope to do with the board, what type riding?
What make, model is the board you won, and what makes models are you currently riding?
All that info will help people give you some sort of meaningful answer!