Using fireworks you can give different edges to the images. This tutorial will teach you produce line edged frame. Following are the simple steps.
Open an image on the canvas.
After selecting the image, click on Filters>Alien Skin Splat LE>Edges.
Alien Skin window is opened below. Select Halftone Lines option from Edge Mode.
You can adjust the Edge Width, Margin and Feature Size sliders. You can also give a transparent fill for the image by ticking the Transparent Fill option. Adjust the Random Seed value also. Live preview will be available in the right side itself.
Line edged frame with transparent fill or colour fill is created.
Here's the image with a line edged frame and with a colour fill!