Profile Image Upload

Now getting following error when pressing upload image button:
Unable to load the requested class: profileimages

Upload Controller:

<?php

class Upload extends CI_Controller {

	function __construct()
	{
		parent::__construct();
		$this->load->model("profileimages");
		$this->load->helper(array('form', 'url'));
	}

	function index()
	{
		$this->load->view('upload_form', array('error' => ' ' ));
	}

 function Upload()
  {
  	$user = $this->session->userdata('user');
  	$this->profileimages->putProfileImage($user, $this->input->post("profileimage"));
    redirect('homeprofile/index');
  }

  function do_upload()
  {
  	$config['upload_path'] = './uploads/';
  	$config['allowed_types'] = 'gif|jpg|png';
  	$config['max_size'] = '100';
  	$config['max_width'] = '1024';
  	$config['max_height'] = '768';

  	$this->load->library('profileimages', $config);

  	if (! $this->profileimages->do_upload())
  	{
  		$error = array('error'=>$this->profileimages->display_errors());

  		$this->load->view('upload_form', $error);
  	}

  	else
  	{
  		$data = array('upload_data' => $this->profileimages->data());

  		$this->load->view('upload_success', $data);
  	}

  	redirect('homeprofile/index');

  }

  function displayImage()
  {
  	//Retrieve image id from the URI
  	$imageid = $this->uri->segment(3);
  	//Initialize the images model
  	$this->load->model("profileimages");
  	//Call the model's getImage function passing the image id
  	$image = $this->image_model->getProfileImage($imageid);
  	if (!is_null($image)) {
  		//need to know the mine type
  		// header('Content-Type: image/png');

  		header ('Content-Type: image/jpg');
  		imagejpeg(imagecreatefromstring($image), null,100);
  	}
  	else{
  		// load a default profile image
  	}

  	function viewProfile(){
  		//load profile detail view for users and display image
  		// 18 = change to image id
  		echo '<img src="<?=base_url()?>profile/displayImage/18" alt="profile"/>';

  	}


  }


}
?>

ProfileImages Model:

<?php
class ProfileImages extends CI_Model
{
	function ProfileImages()
	{
		parent::__construct();
	}

	function putProfileImage($user, $image)
	{


		$record = array('user' => $user, 'profileimage' => $image);
		if ($this->exists($user))
		{
			$this->db->update('profileimages', $record)->where('user', $user);
		}
		else
		{
			$this->db->insert('profileimages', $record);
		}
	}

	function getProfileImage($user)
	{
		$this->db->select('*')->from('profileimages')->where('user', $user);
		$query = $this->db->get();
		if ($query->num_rows() > 0){
			$row = $query->row();
			return $row->profileimage;
		}

		return Null;


	}

}

Homeprofile View:
http://localhost/ci/web-project-jb.php/homeprofile


  <div id="maincontent">
      <div id="primary">
       <?$error;?>
        <?=form_open_multipart('upload/do_upload');?>
        <input type="file" name="userfile" size="20" />
        <?=form_submit('submit', 'Upload')?>
        <?=form_close();?>
      </div>
      <div id="secondary">
      <p>
          <?=$profileText;?>
        </p>
        <p>
          <?=form_open('homeprofile/changetext'); ?>
          <?php $msgbox = array(
          		'name' => 'profiletext',
          		'rows' => '8',
          		'cols' => '30',
          		);?>
         <?=form_textarea($msgbox);?>
         </p>
         <p>
          <?=form_submit('submit', 'Change'); ?>
          <?=form_close(); ?>
        </p>
    </div>
   </div>

Upload_success view:
http://localhost/ci/web-project-jb.php/upload/do_upload
I created this file following a tutorial, but ideally I want the image to appear on the same Homeprofile view page once uploaded

<html>
<head>
<title>Upload Form</title>
</head>
<body>

<h3>Your file was successfully uploaded!</h3>

<ul>
<?php foreach ($upload_data as $item => $value):?>
<li><?php echo $item;?>: <?php echo $value;?></li>
<?php endforeach; ?>
</ul>

<p><?php echo anchor('upload', 'Upload Another File!'); ?></p>

</body>
</html>


SQL statement to create table - create table profileimages (user varchar(256),
profileimage varchar(50));