win98 on latitude d600

i used to work with a siemens portable connected to my gc's

i bought a latitude d600 that was equipped with win xp

does not work at all

i installed a win 98 on it and it worked

now i'm looking for the right drivers for my soundcard )sigmatel 9750), modem (conexant d480 mdc) and video (ati radeon 9000)

anyone an idea where to find them ?

thanks