It is not always recommended to update drivers or bios if you system is working perfectly fine.
I have found only a previous version. YOu can try this one.
For Intel 4 Series Express Chipset : http://downloadcenter.intel.com/Filter_Results.aspx?strOSs=152&strTypes=all&ProductID=2996&OSFullName=Windows%20Vista*%20Home%20Basic,%2032-bit%20version&lang=eng&sType=prev
Please note this is the only previous one available, and it may not always be the one that you were having on your system prior to the driver update.
Hope this will be useful.