Captcha Extended Not Showing Up Images.

My code is

<?php if(extension_loaded(‘gd’)): ?>

                &lt;div class=&quot;field&quot;&gt;


                        &lt;?php echo &#036;form-&gt;labelEx(&#036;model2,'verifyCode'); ?&gt;


                        &lt;div&gt;


                        &lt;?php &#036;this-&gt;widget('CCaptcha'); ?&gt;


                        


                        &lt;?php echo &#036;form-&gt;textField(&#036;model2,'verifyCode'); ?&gt;


                        &lt;/div&gt;





                        &lt;?php echo &#036;form-&gt;error(&#036;model2,'verifyCode'); ?&gt;


                &lt;/div&gt;

<?php endif; ?>

controller code is :

public function init(){

	// import class paths for captcha extended


	Yii::&#036;classMap = array_merge( Yii::&#036;classMap, array(


		'CaptchaExtendedAction' =&gt; Yii::getPathOfAlias('ext.captchaExtended').DIRECTORY_SEPARATOR.'CaptchaExtendedAction.php',


		'CaptchaExtendedValidator' =&gt; Yii::getPathOfAlias('ext.captchaExtended').DIRECTORY_SEPARATOR.'CaptchaExtendedValidator.php'


	));


}

site controller code is

‘captcha’=>array(

			'class'=&gt;'CCaptchaAction',


                            'class'=&gt;'CaptchaExtendedAction',


			'backColor'=&gt;0xFFFFFF,


		),

make sure you have GD or Imagemagick installed.