Recently my sister gave me a great idea to help aspiring writers get their ideas down on paper. Start with writing out short summaries of scenes until you reach the end of your story. This method is great because it helps you find the direction you want to take with your book and in a general sense so that you can later return with detail. My most recent story has about 52 scenes and I could have made more! Next write out all the characters, their names, and a short description. This is a good beginning for anybody who is interested in writing a short (or long!) story.
I would also like to point everyone to a blog by my brother-in-law who is a writer. If you leave a comment about a character, event, and place he will write a short story! Check it out.