Todd,
>I was wondering if anyone knows how to find the tracking log of users on the internet information server of where they have been on the web. I guess it is called the tracking log?
Let's get some clarification... Do you mean you want to know "where they have been" on YOUR web pages on YOUR web server -- what pages have been viewed by visitors to your web site, etc? That's the kind of log that can be analyzed by WebTrends or other web-traffic analysis software, and is in your WindowsNT\System32\LogFiles\W3svc1 directory, as already mentioned by others.
Or do you mean where on the internet have YOUR company's computer users been surfing? If so, and they connect through NT proxy server, you will find those logs on the server in ...System32\msplogs and/or ...System32\wsplogs, depending on whether you're using Proxy Server or just Winsock Proxy.
Otherwise, you have to look in each user's browser history and cache files.