Actually, Dreamweaver doesnt won't give you any help unless you know how to read or do codes. Dreamweaver can only give automatic codes only on HTML, CSS, and XML but not on PHP, Javascript, ASP, or any complicated codes. But if you do know how to code, Dreamwever will make your work easier.

@glors: here some website that has tutorials:
http://dynamicdrive.com
http://tutorialized.com
http://www.w3schools.com/html