Ahhh ... no wonder I'm not experiencing such joys. I tried installing 3.9.1Pb and was told that the installation can't proceed because the installer can't find the LimeWire.msi file to un-install my current (3.8.6P) version of LW. See my post on that subject.

It's nice that the LW folks are finally including a quasi-changelog with each new version; it'd be better yet if an historic changelog could be included with each release (e.g., most programs would have a history.txt or changelog.txt file included with the distro).