I'm not sure, but I think in one of Matt's newsletters he advertised a program that did that and I am pretty sure it was a full version. I'm not sure. I'll post back when I find it. If you get a chance, Matt would tell you I'm sure.
So, I'm well out of date on this reply. I just stumbled across the topic when I was looking for something else.
Anyway, the log analyser I use is called 'analog'. Its very fast, took a little while to configure (my server generates a non standard log), but gives very accurate reports. Its also totally free and can be got from: http://www.statslab.cam.ac.uk/~sret1/analog/