I am very impressed with WCMS - very cool.
Anyhow, here is a minor bug I found - my website is called "Nature's Insight" http://www.naturesinsight.ca (my wife's actually). Because there is an apostrophe (single quote) in the site name, this caused an error on the setup page and the script aborted (white screen). I would suggest that user fields be passed back to the script after using the php addslashes function. (http://ca.php.net/manual/en/function.addslashes.php), or at least mention on the setup page to prefix apostrophes with a slash character.
Cheers.
Rod P
Ottawa Canada