8KNXP has no USB 2.0

Hello;

I have a 8KNXP that is 1 1/2 years old and it appears that my USB
prots are not 2.0. I assume this means I need a BIOS upgrade (I have
version F5). I have a SATA mirrored SIL set. When I check the BIOS
updates it says;
-----------
Note! If your OS (like WinXP) is already installed on SATA HDDs under
ICH5R controller, please make sure to update ICH5R SATA RAID driver
from our IUCD 2.4 or Gigabyte website first, then update bios

Problem is that I'm not sure which driver to download. Can anyone
steer me in the right direction?

Thanks.