Metadot is a vast heap of shit disguised as a CMS. Someone I used to work with, who still has to deal with it, hates it so much that his hate could not be contained in a mailing list post, thus he has made an entire website for it:
http://www.ihatemetadot.co.uk/ -- Earle Martin http://downlode.org/ http://purl.org/net/earlemartin/