I've been doing the trick on and off for years. It was originally part of Michael's book Encore III. My friend Steve Dobson has a killer presentation for the trick using a twenty and two tens, which is included in the book. I don't know if it's mentioned in the packaged form of the trick.
Please don't be hurt if I offer some advise. I know you are a young person and I think this trick can be difficult for an inexperienced performer. Not because it's hard to do but because it's not examinable and you must have the ability to control your audience so that they don't ask to handle the money or the moment is ruined.
Before you purchase this think about how you would manage the moment so that there's no chance of anyone asking to handle the two dollar bill. Once you have figured that one out you'll be ready to do the trick.