I have several external pages that use the WP theming engine (see instructions at http://codex.wordpress.org/Integrating_WordPress_with_Your_Website) ... the problem is when I upgraded to WP3.0, these pages now don't work as expected.
Instead of getting the WordPress header, sidebar and footer with my content in the middle, I'm getting what appears to be either a "Page not found" or the homepage (depending on the URL).
Here is a test page that produces the 404:
<?php require('../../wp-blog-header.php'); get_header(); ?> <h1>This is a test</h1> <?php get_sidebar(); ?> <?php get_footer(); ?>
This page worked fine under 2.9.2. Any ideas?