Had the same situation, laptop from Japan (Toshiba Dynabook T6/518CDE) needed to put XP SP2 in English on it and get video, bluetooth and modem working.
Just wanted to say that solution above works great. However there may be a few variations with the modem driver, as most manufacturers change modems even within model numbers. Drivers that worked were:
Video: Driverguide solution found above was great, specifically was DriverNvidiaGeForce420Go.exe at 5.93MB
Bluetooth: Driver for Toshiba Tecra 9000, Bluetooth Stack from Toshiba, file name was bt_40036t.exe 26.6MB. Installed all bluetooth devices well.
Modem: In my case was different, had to check model number on chip, was an Askey 1456VQL4(INT). Found Toshiba Satellite 1415-s173 to have same modem. Downloaded and installed s141mdmx.exe at 914.3KB, worked perfectly.
Thanks for the help,
Michael Howard, Manager
http://www.mapleparkdigital.com