gistfile1.php

<?php
	'import' => array(
		...
		'application.helpers.*',
	),
	'modules' => array(
		...
	),
	'components' => array(
		'file' => array(
			'class' => 'ext.file.CFile',
		),
		'image' => array(
			'class' => 'ext.image.CImageComponent',
		),
		...