Pauline,
BTW -- folks -- the link to Andromeda will work if you take out the extra "i" (Andromeda, not Andromedia).
Since it's a demo, and has the "OK" button grayed out, it is hard to get a good idea of how it will affect an image. I gave it a try -- it was available in my dropdown list of filters, (after restarting PShop) and would open up to what looked like an ad for the company -- after I clicked on the Etchtone filter demo name (inside the rectangle), it opened up to show two windows - one for the original image you are working on (left side), and one to show the effects of the filter as you adjust the sliders for contrast etc. -- AFTER you choose either the "Blend" or "Overlay" box in the center of the filter box. (I think that is necessary).
I remember looking at this last year sometime and loving the look of the metal on those spurs in their ad. Seems we could create something like that if we tried... It's a beautiful look, but $98 is a lot of money.... but it sure is a beautiful look...