Mtgox is no more

Mtgox has stopped giving out exchange data. The follwing code mod will get the exchange rate from btc-e.com
Line 368:

$mtGox_currencies = array(
    'USD',
    'EUR',   
    'GBP',    
  );

  // @todo add cache
  if (in_array($order->currency, $mtGox_currencies)) {
  
	if ($response = file_get_contents('https://btc-e.com/api/2/btc_' . strtolower($order->currency) . '/ticker')) {
	
      #if ($response->code == 200) {
        $data = json_decode($response,true);
        if(!empty($data['ticker']['avg'])) {
          $rate = $data['ticker']['avg'];
        }
      #}
    }
  }

Todo: get list of supported curencies from btc-e, read the http headers to check for http 200 response code or re-use drupal http request.

I hope you will be able to adapt the the module