install the tracking pixel problem

Hi
My opencart version 1.5.6.4.
I would like to install third party iframe pixel to confirmation / thank you page , the code as below:

<!-- Offer Conversion: -->
<iframe src="http://tracking.shopmarketplacenetwork. ... >"width="1" height="1" /></iframe>
<!-- // End Offer Conversion -->

but I don't know how to solve <ORDER_ID> and <SALE_AMT> in the iframe lins.
Btw I didn't know programming so pls help me to find out this problem. THANKS！！

Unfortunately it is not so simple because the success page also clears out all the data from the checkout process. You would need to edit some controllers in order to retain the critical data and then also edit the template in order to add the HTML code above.

Because you dont know programming, I suggest you reach out to someone in order to do this for you as it will require knowledge of PHP and opencart. And any mistake will kill your site.