my apologies, the code should be:
<pre>
<?php
@session_start();
echo "Full Request: ".(isset($_SESSION["eCart1_FullRequest"])?htmlentities($_SESSION["eCart1_UPS_FullRequest"]):"n/a")."<br />";
echo "Full Response: ".(isset($_SESSION["eCart1_UPS_FullResponse"])?htmlentities($_SESSION["eCart1_UPS_FullResponse"]):"n/a")."<br /></p>";
?>
</pre>