I have this same problem with ID CS4 on OSX 10.9.5, so I did the suggested download and clicked on the DMG, then on the Setup file. I get an oh-so-helpful error message: "Cannot install Please click the Quit button." I performed the ID uninstall prior to the download.I noticed that the uninstall had left behind a bunch of files and folders including the main ID folder. So I manually deleted them and tried again with the same result.
Now what?
Dan Shafer