Pushing Variables from PHP to TPL

[kalua]

Hey all

 

I have some problems setting up a tracking code for an affiliate network in relation with paypal.

Right now, i have to push data from the submit.php in the paypal-module to the final site, the order-confirmation.tpl

 

At the moment i looks like this in the submit.php

 

$this->id_order (gave me the order number)

$order->total_products (gave me order sum without taxes and shipping)

 

But how can I get this out in the order-confirmation.tpl?

 

i tried {$total_products} in the .tpl but nothing returns?

Any idea?