The session info is not displayable in a saved session because the script that sets it up only runs once when you originally start the session. TrainzLab has a tutorial that shows how you can get session info displayed in a saved session. The link to the tutorial is http://www.smileydesign.co.uk/TrainzLab/html5.htm
Smileyman's page is under reconstruction/down and this problem is really getting on my nerves... Does anyone have a copy of the tutorial or know how to fix the problem...?