Dublin Core implementation

I've been exploring the Working with Dublin Core codex on the Omeka website: http://omeka.org/codex/Working_with_Dublin_Core

The example given of a sound Dublin Core installation by the North Carolina Exploring Culture and Heritage Online project does not seem to link to a description of using Dublin Core. Could you please point me to an updated link? Thanks!

Not sure if this is the same that the link used to go to, but seems to be relevant. http://www.digitalnc.org/about/participate/describe/