Apparently, Toshiba never sold nor shipped this system with Windows Vista installed. I suppose that's why they only post Win 7 drivers for this system.
Intel Matrix Storage Manager for Windows 7 (32/64) (v8.9.0.1023; 10-15-2009; 23M)
http://www.csd.toshiba.com/cgi-bin/t...y=10 73768663
Have you tried this driver to see if it will work in Vista? If it doesn't work, then I suggest you visit the Intel website and see if you can find a generic driver.