Sorry, sure it's been asked before but I just can't find it.

Trying to put in an affiliate pixel.

We have the template correct as stated here https://www.zen-cart.com/tutorials/i...hp?article=399 .

This is what the pixel looks like from the affiliate system

Code:
<iframe src="http://tracking.mywebsite.com/aff_l?offer_id=3&amount=AMOUNT" scrolling="no" frameborder="0" width="1" height="1"></iframe>
Following directions I changed it to this

Code:
<iframe src="http://tracking.mywebsite.com/aff_l?offer_id=3&amount=<?php echo $order_summary['commissionable_order']; ?>" scrolling="no" frameborder="0" width="1" height="1"></iframe>
I also tried a number of other variations, nothing is getting back to the tracking system. Any help on this is greatly appreciated. This is the last piece to going live with this store.

Garret