I have just checked your site to see how far you have progressed with integrating your NOP CART. (Your site was under maintenance)
I do know
the answer but rather than spend time typing in the solution I need to know what level you are at. The term Newbie is very ambiguous I often refer to myself as a Newbie. I have posted the solution on the forum before and for those who understand how the NOPCART functions it is quite simple.
Basically almost all payment gateways use a mixture of Hidden Fields to generate the information they need to operate. Just omitting one of these fields can cause the transfer to malfunction.
NOCHEX needs the AMOUNT FIELD, the way this is written in the code has to be exact otherwise it will not work. As a NOCHEX user you will know that they also need a hidden email field.
I could go on trying to relay the information to you, but the best way to grasp the answer is better illustrated in email or by telephone. If the explanation on my previous post is not sufficient please email me at email@example.com use subject NOP-NOCHEX
I know how frustrating this can be, I spent about 3 or 4 days working this out.
My previous post can be found at the following link:
Hope this helps
PS good luck