I confirmed that .zip and .egg install fine when easy_install on the files that are on my laptop, or when I upload them to pypi (cheeseshop), easy_install finds them, downloads and installs.
But when they are on sourceforge, it looks like easy_install can't process what it has received as it says
error: Couldn't find a setup script in c:\docume~1\schoenb\locals~1\temp\easy_install-5z1j7d\download
Since I like the file download history available in sourceforge, whereas pypi only shows total downloads, I will have to forfeit installability directly from web. Downloading the .zip or .egg from sourceforge then easy_install on the downloaded file works fine, so the four related pending bugs will be closed and I will update the docs.