This is a simple yet popular effect for creating 3D balls
or spheres in Fireworks 4.
Step 1. Create a circle. Begin by drawing out a circle
with the Ellipse Tool, (be sure to hold the Shift Key as you
drag to create a perfect circle).
Step 2. Apply the Radial Gradient. Go ahead and change
the Fill from Solid to Radial Gradient.
Step 3. Edit the gradient. Next edit your Gradient by
clicking on the Edit button to bring up the Edit options.
Click the left color swatch and select White. For the Right
Color Swatch, choose a color of your choice for the sphere.
Step 4. Modify the gradient's position. Return to your
shape and click the Paint Bucket Tool to bring up the
Gradient Modifying handles.
Step 5. Adjust the gradient. Grabbing both the Circle and
Square handles, adjust them so they match the image below.
This creates the effect that the light source is coming from
the top left.
Step 6. Add a drop shadow. Create a
Perspective Shadow effect to finish off your sphere and
you're all set:-)