Analysing IIS Logs

We have a huge IIS log with us. The System is W2k Adv Server. We want to track:

1) The IPs who accesses the two ASP pages in our site at particular time.

2) The navigation pattern a user followed from the time she came to site till the end.

I've tried "Log Analyse" & "123LogAnalyzer V.2" but they give us the reports in pre-defined formats. Like # of hits to a particular page, or # of hits to site by particular IP etc. These didn't tell the exact thing we need (As mentioned above). Its difficult & hectic to search the log manually.

So tell me if you now any tool which fulfills our task.