Terminal Server - Client access logging

Is your Win2k TS server part of a Active Directory-enabled domain (with Win2K Domain Controllers), or is it a stand-alone system, OR do you have a NT4 flat domain (with NT4 PDC & BDCs)???
Your Windows network design makes a difference here.
If yourun Win2K Domain Controllers with AD, then you could set Success and Failed Logon Attempts in Group Policy. I don't have a Win2K DC to run through the steps right now, though.

If you run Win2k TS on a stand alone system or in a peer-to-peer network, then you can set the local auditing properties on the TS server itself. That I can walk you through.
Open Control Panel -> Administrative Tools -> Local Security Policy.
Expand Security Settings -> Local Policies -> Audit Policy.
Double-click Audit Logon Events, and click the checkboxes for Success and Failed.
Click OK, and then close Local Security Policy.

Ok, now when a person logs into a server via TS, you can then open the Event Viewer on the server itself, and open the Security log.
You will have Successful Events for logon and logoff. It is in here, that when your TS clients log in, you will have a record of it, now that auditing is enabled.

You can then export this data to a spreadsheet, and give to your manager. A good tool for exporting is called Event Log View from www.engagent.com

hope this helps