Imgage resize extension problem??

Hi guys i m using image extension of yii for image resizing i have morzilla6.0,php 5.0,yii1.1.6,windows OS

i followed these steps…

1-downloaded and extracted image extension zipfolder in protected/extension/

2-in config main file




'import'=>array(

						'application.helpers.*',  ),

 

in component section of main file




'components'=>array( 

						 'image'=>array(

          'class'=>'application.extensions.image.CImageComponent',

						 // GD or ImageMagick

						 'driver'=>'GD', 

						 // ImageMagick setup path

						 'params'=>array('directory'=>'http://121.242.65.82:8087/protected/extensions/image/drivers'),   // path to image_Imagemagic or  image 																														//_GD_driver files>>>>>

							

        ),

3-in a view file code is




Yii::import('application.extensions.image.Image');

$image = new Image('http://121.242.65.82:8087/images/g2.jpg');

$image->resize(400, 100)->rotate(-45)->quality(75)->sharpen(20);

$image->render();




in morzill browser getting error

[html]

image not found

if ($check === FALSE)

74 throw new CException(‘image getimagesize missing’);

75

76 // Check to make sure the image exists

77 //echo $image;exit;

78 if ( ! is_file($image))

79 throw new CException(‘image file not found’);

80

81 // Disable error reporting, to prevent PHP warnings[/html]

i have checked image is in this path???? plz help me ???