I'm afraid I'm still having callback problems with my store. I've followed the steps in this thread as best as I can but I'm a newbie to both Zen Cart and World Pay. To summarise:
My test and live WP environments both have callback settings of:
Code:
http://<wpdisplay item="MC_callback">
For testing, my worldpay.php file is currently set to:
Code:
$this->form_action_url = 'https://select-test.worldpay.com/wcc/purchase';
I'm able to complete a test transaction using dummy card numbers, but I'm not redirected to my store, nor is an order added to my Zen Cart Admin. Can anyone help me? 
Thx
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