This is a place to experiment, since there are many great combinations of stroke effects that can be used add texture to text. I find that a small brush size, low edge softness and a high percentage of texture usually delivers the best results. Your textured edge is finished. Try a few different strokes with no fill. Many of these outlines hold the shape of the characters well enough to make the text easily read.
Texture is easy with objects as well.
In this image, the large shape is a rectangle with nodes pulled to create the shape. The stroke is the same color as the fill, with a Basic, Hard Line setting, Scratch texture, and medium Tip Softness. These were drawn with the stroke set, but you can also draw with plain lines and then apply the stroke settings. The methods from the CorelDraw pages in this article can easily be applied to Fireworks, substituting stroke settings for the Artistic Media references.