Ok, redownload the file and give it a go again. I added a line to remove all files with a mysql prefix to get rid of all the links and the old version of mysql. I didn't add it originally because my servers didn't have a problem recreating existing links to new locations. So hopefully this will fix it.
I tested it and installed 4.0.14, 4.0.18, and 4.0.20 and they all came on line and were working properly with the correct version numbers everywhere.
I tested it and installed 4.0.14, 4.0.18, and 4.0.20 and they all came on line and were working properly with the correct version numbers everywhere.