Found the answer, while playing around with the stings in some of the other gateways,
I can now pass the totals from the cart to NOCHEX
The string that was causing the problem was the amount string. Basically and to keep this post short, all you need to do is use the World Pay link. i.e. Do the following:
In the head of you document on your checkout page just add the following:
PaymentProcessor = 'wp'; </SCRIPT>
Because the function is already included in your original nopcart.js file the function is called.(that's if you haven't deleted it
Then simply add the following to the Form Action:
Making sure you add the hidden field for your e-mail address:
<INPUT TYPE="hidden" VALUE="firstname.lastname@example.org" NAME="email">
And then when your visitor submits the form the details are passed to NOCHEX.
To ensure I received the full order I created two checkout pages one that passes they information to the checkout.php, which then sends the information to me and redirects to the page that transfers the customer to the NOCHEX gateway. (Hope that makes sense?)
Hope this helps
PS: I now need help with SECPAY????? I have the same problem..