Worldpay Transaction ID

Hi,
We are using the Worldpay plugin and I am looking to retrieve the Worldpay transaction ID when it confirms payment back to Hikashop. The Worldpay guys say this comes back with the payment response/callback.
I have set the following up on my Worldpay account:

Payment Response enabled
Payment Response URL : <wpdisplay item=MC_callback>

The callback appears to be working OK because it changes the status of an order from 'created' to 'confirmed'.

Is there a way of finding out if the transaction ID has been sent back with it too?

Regards
PhilP

I don't know how to retrieve that information from the request sent by the payment gateway. That payment plugin was provided by a 3rd party developer so we don't have much information on the worldpay API.

OK Nicolas - thanks anyway.

If there is anyone else out there with a Worldpay plug-in that can manage this task I shall be glad to hear from them.

Regards
PhilP