super simple CMS for computer challenged types?

I’ve been tasked with finding an easily installed Content Management System to help set up a bunch of sites. The problem we’ve had in the past is that the various CMS things we try (stuff like osCommerce or Joomla or whatever) tend to be overcomplicated for our simpleton users. We end up making all the CMS changes ourself because the users can’t figure it out.

Can anyone recommend a super duper simple CMS that also offers some of the following:
1) Ability to create arbitrary hierarchy of pages rather than just adding links to some flat list
2) WYSIWYG interface when editing text rather than simple BBS or HTML entry style textarea.
3) Templating/skinning functionality that can make page layouts other than the simple image-here-text-there-and-thats-it layout. You know, text and images integrated together in the page. Perhaps the ability to put a colored feature box in your page that contains an image.
4) DB-free information storage a plus.

I’ve checked all the examples here under ‘LITE’ but I’m a bit skeptical of most of them.
[url]http://www.opensourcecms.com/[/url]

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