I downloaded 1.3.7 and found an error in sessions.php.

That is, admin/includes/classes/sessions.php

According to the PHP manual, only constant initializers for var variables are allowed. To initialize variables with non-constant values, you need to use the constructor function.

Specifically, in class php3session, the var declaration for $cookie_path should be changed to:

var $cookie_path;

and this line should be added to the php3session function:

$this->cookie_path = substr(DIR_WS_ADMIN, 0, -1);

At least, I believe this is a coding error, and if I'm wrong I apologize for troubling you.

John