Can I see this file?
Create the images in Fireworks. Build the HTML page in Dreamweaver. Background images need o be exported seperately. mis
This tutorial may explain on how to get a Fireworks comp into Dreamweaver.
You need to slice all the images separately, including the background images as Linda mentioned, You would use the background images to be called in via a stylesheet.
TAKING FIREWORKS COMP TO DREAMWEAVER:
A series of beginner Dreamweaver tutorials that may be of help also:
Creating your first website (series)