I just did an integrating of Stanbic IBTC payment platform with OpenCart for a client. I am posting it here to make someone's life pretty easy.

Follow the following easy steps and get it done fast and quick so you can face other business.

Step 1.

Download below module and extract it into their various folders as indicated in the folder structure.

[!FileDownload? &getFolder=`assets/docs` &getFile=`stanbic_opencart.zip`!] 

There are generally 6-8 files that need to be copied for each module, the structure is as follows:

1. admin/controller/payment/stanbic.php
2. admin/language/english/payment/stanbic.php
3. admin/view/template/payment/stanbic.tpl
4. catalog/controller/payment/stanbic.php
5. catalog/language/english/payment/stanbic.php
6. catalog/model/payment/stanbic.php
7. catalog/view/theme/default/template/payment/stanbic.tpl

Step 2.

Open the file catalog/view/theme/default/template/payment/stanbic.tpl to update your Merchant Id and Currency Code accordingly. Set your payment URL in the form action as what I have provided is the payment URL provided in the documentation. Set it to  either you are using DEMO or LIVE instance.

Step 3.

Go into your admin area and enable the payment option. 

You are good to go.

Enjoy!