Thank you for taking time to reply and for directing me to the resources. However, I am still at something of a loss. The page you identified says, "To configure with Tiki, go to General » General Settings admin panel (tiki-admin.php?page=general&cookietab=2) and set "PDF from URL" to "WebKit (wkhtmltopdf)". "
From the main menu, I clicked Settings->Control Panels, then selected General->General Settings. When I do this, I only see Contact and Sales. Where and how do I set the parameter specified in the above instructions?