The woodcut effect is a tough nut to crack...
Here's what I have to start for you, but I haven't found great success either.
Here's a link to an Andromed Filter "Cutline" for windows that you may have already tried,
ftp://efxservices.com/pub/demos/pc/pccutl.exe The Andromeda Etchtone is also another candidate, as well as the Adobe Gallery Crosshatch.
I have another filter called woodcut.8bf, but I can't seem to find it in my filters menu, probably because I have too many filters installed.
But the effect you showed on the image isn't really so much a woodcut, as a stipple effect...
What it seems you are looking for is a variation on the stochastic screen used in litograpgic printing, that mimics the stipple effect. I haven't seen one around, but if you use those words, you may be able to find something...???
I can email you the woodcut.8bf filter if you can use it,...
DO let me know what success you have, as I would like to use the same or similar effect for my work.
Let me know if you want that filter file...
Cheers,
Paul kiler
Kiler Photography
www.kilerphoto.com
paul.kiler (at) gmail.com