MFAdmin not displaying properly.

[WolfPC]

I am the Administrator of our MetaFrame 1.8 on Windows TS.
I have a person in our office who managed to con a firm partner into allowing him to be included in the Admin group. Of course, when there is a need to work late or on weekends, I am the only one there. He likes to play and look at too much, and now when I look in the Citrix Server Admin tool and look at this persons session, the list of files under processes is blank.

Anyone know how this can be?

Any suggestions on what I should do to lock as much as possible from the guy in my admin group?

Also, are there any tools i can use and setup for just myself so i can monitor everything?

Thanks.