Das Plugin kann nicht aktiviert werden, da es einen fatalen Fehler erzeugt.

//Extend the function plugins_url for older versions
	if ( version_compare( $wp_version, '2.8dev', '<' ) ) {
		function plugins_url($path = '', $plugin = '') {
		  if ( function_exists('is_ssl') )
			$scheme = ( is_ssl() ? 'https' : 'http' );
		  else
			$scheme = 'http';
		  $url = WP_PLUGIN_URL;
		  if ( 0 === strpos($url, 'http') ) {
			if ( function_exists('is_ssl') && is_ssl() )
			  $url = str_replace( 'http://', "{$scheme}://", $url );
		  }


		  if ( !empty($plugin) && is_string($plugin) )
		  {
			$folder = dirname(plugin_basename($plugin));
			if ('.' != $folder)
			  $url .= '/' . ltrim($folder, '/');
		  }


		  if ( !empty($path) && is_string($path) && strpos($path, '..') === false )
			$url .= '/' . ltrim($path, '/');


		  return apply_filters('plugins_url', $url, $path, $plugin);
		}
	}