I am running sc ver. 3.2.0 which is just slightly older than your 3.3.0.
Looking at your returned email I would say you do not have tracking enabled for the courier used. Maybe it is not available for that courier.
At any rate, I don't see the following code being run in your template file.
Code:
<?php if ($Tracking_Supported): ?>
<p>If you created an account on our website, you can track this package as follows:</p>
<ol><li>Login here: <a href="<?php print $Store_Page_URL?>"><?php print $Store_Page_URL?></a></li>
<li>Click "Order History"</li>
<li>Click the tracking number on the order</li>
</ol>
<?php endif; ?>
Note the "If Tracking Supported" conditional.
There is quite a lot on the subject in the Squirrelcart Manual.
Good luck.