Maybe not 100% useful, but I had trouble installing CentOS on a machine with a 9690SA as recently as tonight - who has floppy
drives anymore? (Well, I did, but all my floppies were unusable, big shock..)
The trick was to use the method explained on this site to turn the files in the driver download from 3ware into an image:
http://www.openfusion.net/linux/network-driver-images
Upload it to somewhere accessible via the Internet or your local network. Then all I had to do was boot with the parameter:
linux dd=
http://somewhere.com/filename
Good to know that dd supports http and ftp out of the box and not just local media.
Vidar