phprunner 10.5 and Session Variable issues

I have this in my events...

function AfterSuccessfulLogin($username, $password, $data)
{
$SESSION["test"] = 'testing';
$_SESSION["user_ID"] = $data["user_ID"];
$_SESSION["username"] = $username;
}

As I understand this should load these variables into the session so I can access them from anywhere else in the application. It did not seem to be working so just to test I put a custom code snippet at the top of a list page like this...

echo "Testing Value is ".$_SESSION["test"];
echo "Your User ID is ".$_SESSION["user_ID"];
echo "PHPR username is ".$_SESSION["username"];

when I access that list page I get everything EXCEPT the session variables.

I've been going through the forum and help files for over an hour and don't see what I'm doing wrong.