create more than 2 thumbnails using ci

[eluser]cahva[/eluser]
Does it create the thumbnails if you use this:

Code:

function _create_thumbnails($filename)
{
    $config['image_library'] = 'gd2';
    $config['source_image'] = 'upload/'.$filename;
    $config['create_thumb'] = TRUE;
    $config['maintain_ratio'] = TRUE;
    $config['new_image']='upload/thumb/';
    $config['width'] = 154;
    $config['height'] = 121;
    $this->load->library('image_lib', $config);
    $this->image_lib->resize();

    $this->image_lib->clear(); // This is used normally if you do images in a loop

    $config['image_library'] = 'gd2';
    $config['source_image'] = 'upload/'.$filename;
    $config['create_thumb'] = TRUE;
    $config['maintain_ratio'] = TRUE;
    $config['new_image']='upload/thumb/featured/';
    $config['width'] = 154;
    $config['height'] = 121;
    $this->load->library('image_lib', $config);
    $this->image_lib->resize();
}