What site can I go to that will give me a place to write my story?

You need to read novels. Lots of novels. Any novels. Notice that they all have perfect spelling, perfect punctuation, perfect composition. Notice where they use one space and where they use two. Notice that every speaker in a dialog gets a new paragraph, and every paragraph is preceded by a blank line. Notice any writing techniques or figures of speech. Take notes so you know where you found what you know. It takes a lot of reading to be a writer.

When you have perfect spelling, grammar, and composition, then you don't need a template. You just tell your story. I use www.notepad-plus-plus.org and for presentations I use www.openoffice.org (both free downloads).