It's easy to use Fireworks to create rollover images. You'll create a rollover version of the button that glows with a green color. When the user places the cursor over the button, the other glowing image will load. To begin creating a rollover image
Open the Frames panel. Add a new frame by clicking the New/Duplicate Frame button in the lower right corner of the panel (the button with the plus sign). When you click on Frame 2, you see a dim version of your button that's on Frame 2. This is called onion skinning, and it shows a dim version of the content of the other frame so you can line it up with the current frame's content.
Select Frame 1 and select everything by using the Select all command (Control+A or Command+A). ...