Try out Web Log Storming (http://weblogstorming.com/). A while ago I was also looking for free log analyzer, tried few popular and totally unknown ones - and among unknow ones happened to be a trial of Web Log Storming. Then monthly trial ended, I went on looking for another free or trial version, found some, installed, began to work with it - and all of a sudden realized that I truly miss WLS, for it was truly different. It's organized differently than most of other log analyzers - i would say it's intuitive. Give it a try, I'm positive you'll find it attractive.
Alles Normales blog - looking into profitableopportunities emerging on a border between ONLINE and OFFLINE worlds. First-hand experience from an entrepreneur from non-English speaking country.