I just added the 3ware drivers to my unattended windows install setup.
I had to tweak the txtsetup.oem file to be different from the one that was in the zip from 3ware.
There was only one line different between the two. In my setup, this is the line I used:
d1 = "3ware Escalade 7000/8000 Series ATA RAID Controller for Windows 2000/XP/2003", \disk1, ""
The original was this one:
d1 = "3ware Escalade 7000/8000 Series ATA RAID Controller for Windows 2000/XP/2003", \disk1, \