Terminal Service Manager console session

I have a Win2003 R2 terminal server.  Users login using RDP.  When I launch the Terminal Server Management console I want to see who has logged in and who has logged out.  It use to save this infomation for me for a couple of days now it does not.  I recently did some MS security updates to the box.  Event log gives me printers and such of people who have logged in but they are anonymous.  I have gone into tools >options in TS Manger and checked the box that says Remember Server Connections, that does not seem to keep the users sessions for me.  Currently when a user log's into the box I see them during their session but when they log out you can not longer see any of the session information ie USER/Processes/Information-including IP address etc.  Could my tsadmin.exe be corrupt and if so how do you replace it.  Also does that carry all my licensing info and configuration info.  Please help.