It looks like the development on Chainsaw has stopped 4 years ago (last development build dated 2006-03-02)...
Anyone knows of a replacement tool providing the same functionality, but with more up to date releases?
I'm developing OtrosLogViewer. It's on Apache license and highly active. It has some interesting new features like automatic log events marking, highlighting part of log message, human friendly formatting soap messages and others.
Disclaimer: I am the author of OtrosLogViewer