WorldPay Module for ZenCartv1.3x

[SWUK]

I've had a few sites running Zen Cart v1.3.7 and the World Pay module succesfully for some time.

My hosting company upgraded to PHP v5 at the weekend and it seems this has broken the World Pay module. Other payment modules are still working fine, but when a customer selects the World Pay option the page doesn't fully load so there's no button to press to continue with the order.

It sounds similar to what some other people are reporting (are they also running on PHP v5?), although I haven't investigated this fully yet. I will report back when I find out what the problem / solution is. But I thought I'd post here just in case someone else has already run into problems with the World Pay module when upgrading to PHP 5 and figured out the solution!

Are there any known incompatibilities between the World Pay module and PHP v5?

Is anyone using the World Pay module succesfully with PHP 5 and Zen Cart v1.3.7?