What you downloaded is the installer for the software/drivers, not the software/drivers itself. You need to double-click that downloaded installer to execute it, letting it install the software/drivers for your printer accordingly. You may be prompted to reboot to complete the installation; after it completes you may delete the downloaded installer if you wish.
Hope this helps,
Help! I've been trying to download a printer driver for my Konica Minolta 2400 Magicolour printer onto my new Acer netbook. I've been saving it in the 'programs' folder but, although it says its downloaded successfully, it's not appearing in the programs list. I don't know what I'm doing wrong, and I need to be able to print something urgently!
HUGE THANKS to anyone who's willing to advise this NOVICE!