Version 2
I have reworked the plugin, mainly improvements to the code and administrative interface. Inline PHP have been reworked such that it is not backwards compatible. If you follow the rules inline PHP should work quite well. Note that other plugins that work on post content may interfere with inline includes and php. Get the updated plugin at Wordpress Plugins Directory: Static Page eXtended.
Note that at last check the WP directory hadn’t yet updated to the new version.
