BleepingComputer.com: Reinstalling printer driver for Canon ImageClass4150

I was working on getting the Canon ImageClass 4150 machine to work on a machine with Vista installed. I downloaded the new driver and upon trying to install the installer informed me that I needed to uninstall the previous instances of "MF Drivers" in order to reinstall.

I ran a utility included in the setup zip file that is supposed to remove previous Canon drivers in the 4100 series. I removed it from Add/Remove programs and also in the Device Manager. I've searched the computer (including hidden files, etc) and can't find any previous instances of the driver. Can't figure out what else I need to install.. Any help please?

http://support-au.canon.com.au/contents/AU/EN/8200334500.html

http://canoncanada.custhelp.com/app/answers/detail/a_id/4073/~/uninstalling-and-reinstalling-the-printer-driver

MF refers to the model group...ignore the fact that the second link refers to Win 7. Both links are provided as just info to consider.

Louis