How to put conversion code (adwords) in thanks page

[FM69]

Hi, I should be put the adwords conversion code in thanks page.
I find several post for virtuemart 1.0 but no one for VM 2.0
I'm using VM 2.0.14 and Joomla 2.5.9.

I need to know, how is the virtuemart thanks page, where find it and in which row put the code.

Many tanks in advance.

Fabio