Need help with a user defined tag

[designlacky]

Trying to get this bit of code into a template for tracking purposes. Figured it'd have to be via the user defined tags, which I've little experience with. I've tried multiple ways, and I'm just not sure how to write it. It tells me it's incorrect each time. the original code is:

Code: Select all

<img src="http://pageurl.com/sale.php?profile=32&idev_saleamt=<?PHP echo $_POST['Total']; ?>&idev_ordernum=<?PHP echo $_POST['orderID']; ?>" width="1" height="1">

Anyone able to clue me in?