Finding all Drivers for Toshiba Dynabook AX/55A

Question

my laptop (Toshiba Dynabook AX/55A) was given by my colleague in Japan, and it was installed in Japanese; i re-install it since i don't understand Japanese at all. thus, i face difficulties to find all the drivers for this laptop. i installed windows vista for the operating system. can you help me to solve this problem? thank you very much, God bless you all