A satellite L100, really? Running vista on that - you're a real trooper, kid.
As for drivers, it uses an ATI Xpress 200m (lol) for graphics, so you can just get
any old catalyst pack for vista for those. Good luck with finding genuine Vista drivers for your touchpad, audio and chipset though; Toshiba ended support for the L100 product line
four years ago and updated drivers for vista will not be forthcoming.
Edit: hey, whaddaya know! atleast for the psla3 model there's a bunch of vista32 drivers
available