🚀 go-pugleaf

      Will I need to download the Windows Install Clean Up utility to clean
      out the old files before Adobe Reader 9 will install correctly




You may not have to but, it wouldn't hurt. Generally, you should use the utility if the install doesn't work.

      Is it best to run this, as instructed, rather than save it?




Either way it doesn't matter. You are downloading the installer rather than the entire application. At the time you choose to run it, it will need to access the internet to get the rest of the files.

      Approx. how long will it take to download Adobe Reader 9?




Can't help you there, depends on the speed of your connection. The entire application installer is around 25MB.

If you'd rather, you can always download the entire installer from ftp://ftp.adobe.com/pub/adobe/reader/win/9.x/9.0/enu/AdbeRdr90_en_US_Std.exe . With that, you can save it to your hard drive and run it later without needing an internet connection.