My recommendation is to learn some html. Do a search on google for html tutorial. It's pretty important to at least know a little, no matter what program you use. I program website CGI as a part of my regular job, but also do web design on the side. I started out learning html and programmed my first websites strictly using it and without having done that, I wouldn't be able to do it on a regular basis. If you really want to learn how to make a good, sharp looking, user friendly site, I recommend not only learning html, but learn CSS (cascading style sheets). Everything you need to know can be found on google. Follow along with a couple tutorials and within a week you can be writing html from scratch in a text editor. Then, when you go to use your program (whether it's dreamweaver or something else) you'll be able to fix/adjust anything you might not be able to get quite right.
If you have questions, feel free to PM me.