Hans L, by the way welcome to the forum!
Right click on "Computer" then go to "Properties" left click and go to "Device Manager" on the top left, left click on it and new window will pop up. Click on the item you're curious about and double click it, and then look at the driver tab to see what driver is installed. It will give you the version number and date, etc.
Windows Vista drivers may work for your monitors, many times they'll function just fine as a "Plug N Play" mode.
A handy little free program is SIW or System Info for Windows. It's a stand alone program.
Go here to download it:
http://www.gtopala.com/ look for the "english standalone version" toward the bottom right side of the web page. This will give you TONS of data about your system. It's really handy and quick. You might say it has a plethora of info for you to check out. The "Devices" section will give you tons of info about your hardware and the associated drivers. You may have to look close, but it will give driver registry key locations, driver version, driver date, driver name, etc.