Yii Wheels File Upload

Hi all, i’m newbie with Yii, hope you all can help me. i wan an example how to upload file with Yii wheels fileupload. i have check on [size=“6”]yiiwheels.2amigos[/size] it only have below widget

$this->widget(

‘yiiwheels.widgets.fileupload.WhFileUpload’,

array(

‘name’ => ‘fileuploadui’,

‘url’ => $this->createUrl(‘site/upload’, array(‘type’ => ‘fine’)),

‘multiple’ => true,

));

it is not work when i click on the add file button.