- Copy code-markup.php into your WordPress plugins directory (wp-content/plugins).
- Log in to WordPress Admin. Go to the Plugins page and click Activate for Code Markup.
- Go to the Options page and click Writing. Make sure «WordPress should correct invalidly nested XHTML automatically» is NOT checked. (Otherwise it may do funny things to your code listings.)
Этот плагин можно скачать и использовать при автономной установке WordPress.