Are they showing up in your webmaster toools or Yahoo site explorer? Who knows if they are counted, and if so, to what degree. Quality always reigns supreme over quantity. Why not find a better Article Directory to post your articles if you are concerned about in the site above? There are a bunch of them.

Agreed. There are many respected article submissions that have high in page rankings, I would suggest that you find another sites that is more suitable for your quality content.