I have labored for 2 blogs to try and get friendly and working 404 pages. These are page not founds error pages for when people arrive at a bad page on your blog.

Who out there customizes their 404.php or error pages, I want to know how you did it, or if you didn't and you are having problems with it, try my technique and let me know how it works for you.

See my blog for instructions that i did:
http://www.dragonblogger.com/2008/09/wordpress-tip-fix-blogs-404php-page/

To test an error page, just hit your blog with an invalid URI like http://www.dragonblogger.com/badURIand you will see the 404.php error page.

Let me know your comments and feedback and I will blog you back.