Actually, I have checked on the support site for Intel. I can see that they stopped making new drivers for this controller. Its final build was for Windows XP.
Unfortunately, there is no Drivers for Windows Vista. I would think that the generic driver would have been in Windows Vista itself.
Have you tried to update the driver through the Update Utility?
If nothing works, contact Fujitsu Support, as this is an OEM laptop, they may have some information regarding this.
Intel has the generic driver, but sometimes even OEM uses our Intel drivers like Acer, HP, Sony.
All the best,