Try the following:
Update your driver disk to the latest version!!!!!!! As you already know this disk is needed in the F6 part of the installation. The "old" driver on the CD which came with my mobo caused me to reinstall four or five times.
other options
Look at the boot.ini file. Check to see if your freshly installed windows is set as the default. For more information on boot.ini check http://support.microsoft.com/?kbid=314081 for more information
Change the boot order of your drives. Make sure your SATA drive is set as the first hard drive to boot from.
Hope this will help.
Jos