For all those interested in a link directory with SEO friendly URLs, I have modified/added the following two contributions.
Ultimate SEO Friendly URLs v2.2 (Original contribution & programming credits to Chemo)
http://www.oscommerce.com/community/contributions,2823
and
Links Manager for OSC v1.2
http://www.oscommerce.com/community/contributions,1256
Together, they allow Links Manager for OSC to display SEO friendly link page URLs in the form
www.yourdomain.com/directory-page-name-links-##.html
where ## is the directory number.
View the contribution live (and please feel free to submit your site) at http://www.nventa.com/links.php