Syntax Desktop CMS

freshmeat.net: Project details for Syntax Desktop
Syntax Desktop is a publishing system used to manage the contents of a Web site. It has an attractive GUI with DHTML elements. You can use it to insert news, photos, documents, and tree data structures into your site. It features easy DB backup and style switching.

Good use of DHTM GUI. I really should look into this more. It works in Firefox as well as IE.