It has been said elsewhere that getting any 32 bit driver to work is a 64 bit OS is not possible. The exception is whee you have the source code.
Unfortunately I have to disagree with this...
I have been able to use 32-bit drivers on 64-bit builds for Windows 7, its just that the OS might alert you to the fact that its not a 64-bit signed driver but of which you force it to accept to use that driver anyways.
While this will not work for all drivers, some drivers that are 32-bit drivers for 32-bit OS's work with 64-bit OS's. However if there is the opportunity to do so, its always best to run the latest and correct for the OS drivers vs off bit type and off OS type.
I have been able to get a 32-bit Windows XP driver for an obsolete chipset for example to work with Windows 7 64-bit with with Core 2 Duo CPU where the integrated GPU was maxing out at 800x600 with the Windows 7 64-bit generic driver. I was able to force it to run the 32-bit XP driver on 7 64-bit and get the 1024x768 that I wanted as well as the correct GPU driver vs generic so that games would run better on the integrated video such as Facebook flash games.
*** Not sure if this holds true though for Windows 8 64-bit as for I havent forced Windows 8 or 8.1 64-bit to take a older 32-bit driver like I have Windows 7 64-bit.