Fireworks’ interaction methodology is similar to Illustrator’s: when you hover your mouse over each object on the canvas, the object is highlighted (its outline changes to red), and then you can simply select it by clicking on it (the outline will change to blue). You can also select several objects by clicking on each while holding Shift or simply by dragging the mouse across them all.
via Useful Fireworks Techniques And Features For Large Design Teams | Smashing Fireworks.