Know how to upload a background image using the Twitter API?

Hello,

I am looking for someone to tell me how to upload a background image to the Twitter API.
I am using a PHP class to interface with the API using the following method

	/**
	 * Updates the authenticating user's profile background image.
	 * Expects raw multipart data, not a URL to an image.
	 *
	 * @remark	not implemented yet, feel free to code
	 * @return	void
	 * @param	string $image
	 */
	public function updateProfileBackgroundImage($image)
	{
		throw new TwitterException(null, 501);

		// build parameters
		$aParameters = array();
		$aParameters['image'] = (string) $image;

		// make the call
		$response = $this->doCall('account/update_profile_background_image.xml', $aParameters, true);

		// convert into xml-object
		$xml = @simplexml_load_string($response);

		// validate
		if($xml == false) throw new TwitterException('invalid body');

		// return
		return (array) $this->userXMLToArray($xml, true);
	}

Code (markup):

However I am getting this error:

Fatal error: Uncaught exception 'TwitterException' with message 'Not Implemented' in /twitter.php:1230 Stack trace: #0 /process.php(42): Twitter->updateProfileBackgroundImage('simpletext.jpg') #1 {main} thrown in /twitter.php on line 1230

Code (markup):

I don't think I am passing the image to the API correctly. I am willing to pay someone a few dollars to point me in the right direction with this via paypal. Please PM me if you can help

 

Still looking for someone to do this. All you have to do is show me how to upload a twitter background through the Twitter API successfully