Alan - you are very patient person! - i've just read through all the posts in this thread and see that you've repeated yourself quite a few times because people don't read all the posts.

Unfortunately I'm having problems with the worldpay module after upgrading a site to 1.3.7 and moving to a server with php 5.1.6.

I've tried all the suggestions in the forum re. php5 but still get the:

.. your payment has been cancelled!
Response from WorldPay:

This is a TEST TRANSACTION. No money has changed hands

and, of course, the order doesn't get processed in zencart.

We tried the site on a different server (PHP4) and it was fine.

Are there some ssl settings I need to look at?
After returning from worldpay; the url is: https://select.worldpay.com/aequitas...=1190100180110
I don't have any ssl on the domain.

Or does the module simply not work yet with php5?

I'm stuck!

Thanks
Paul