I'm assuming your new to web design. Designing websites is quite easy, but there are a couple things you need to do learn/have before you can do this. There are plenty of programs like dream weaver and blue voda (a free alternative) that are what you call WYSIWYG programs. This means "What You See Is What you Get". Most web designers stay away from these programs because they do weird things with coding sometimes.
My suggestions is to learn HTML and CSS. With HTML and CSS you can create basically any web page. The reason you use CSS additionally is to make your web page "fluid". This will make it so that your web page will work in multiply browsers and screen resolutions.
If you learn well by reading I suggest this page.
http://w3schools.com/I personally am a visual learner. I recommend this video.
http://www.youtube.com/watch?v=QFuaPH7_LcUThis kid is young, but he knows what he's doing.
Once you get an understanding of these coding techniques you just design your page in PS or what ever program your using and them code it in html.
Enjoy!
Kevin DiGennaro