You don't necessarily need to know all sorts of coding to be able to create a webpage. Dreamweaver and other programs similar (like FrontPage) can help you make them without much coding knowledge. However, in order to know how some things work on a website, it is always good to have a little knowledge on how to manipulate things on your pages to the way you wish them to show up when someone views your site.
A really good link to learn how to code in HTML, XHTML, CSS, and other web languages is: http://www.w3schools.com/. They have tutorials, examples, and ways to learn using interactive features.