Importing into Word 2010 style sheet lulu

I am a noobie, and new to writing professionally. I use to use MS Word to do all things. My question is, I am a bit confused, is how do I apply a style sheet to Scrivener or when I export into Word 2010 how do I apply the style sheet, ie lulu that has certain style features for headings, chapters, etc. Exporting rtf into word then knowing how to apply a style to a whole document.