How do I tell which driver version I am currently using? (for NVidia)

I read how to do on the Nvidia website, but I don’t understand… so can’t do it.(!!)

could someone tell me??
NB : I use Win XP if it might help…

Go to Accessories on your Start Menu. Click on System tools then System Information. Then Expand on the Software Environment and click on Signed Drivers. Look for Nvidia drivers installed. This should give you the driver info you need. Good Luck