You oughta know: Tracking Scripts are output directly before the closing
</body> tag on every page of your site.
To use Tracking Scripts in Thesis, simply copy the code snippet from the provider, and then paste it into the Tracking Scripts area in the Thesis Admin interface (Thesis Admin → Site → Tracking Scripts).
The Tracking Scripts area is for all tracking scripts except Google Analytics, which has a special Thesis integration.
For a quick guide on setting up Tracking Scripts, check out the video below: