As you can see in the 1st screenshot, you have 1 or 2 options to choose. You can download the specific
driver you require (Vista 32 or 64 depending on your installation). You can also allow for the site to check your hardware to see if it's up-to-date.
Once you download the
driver, locate where it's saved (usually the Downloads folder) and right-click it then select 'Properties'. Next, click the 'Compatability' tab & set up as seen in 2nd screenshot. Now run the file and it should install, if you get a message stating that an older
driver is being installed just choose yes to continue.
Once installed you will need to restart you machine. Then using Windows Update you can use it to search for new
drivers.
Hope this helps