Dragable letters

Hey!
For school I have to make a game show, so I was going to use Flash to create this board that would be displayed on the big touch screen projecter in my library. Anyway, on this board I need to be able to drag around letters (that I convert to movie clips, buttons, or what not).
I will have like 15 letters all jumbled up, and the user will have to drag the letters into the correct order.

Also, does exporting the file as a projector file (.exe) will the comp running it need MAcromedia Flash Player?

-Thanks for any help
-Bob