For a Radeon 9000 mobile, I would reccomend either downloading Readeon moble drivers from the ATI website or looking on your laptop manufacturer's website. Not just any driver will work properly with a mobile Radeon.
I looked at that 6.4 mobile ATI driver, and it was only for 9600 and up. This card is a 9000, and I do not think the notebook manufacturer has updated a driver in a long while. So where do I go?
I would either go with the manufacturer's newest driver or take a chance and see if the newest Radeon mobile drivers work even if it isn't listed. You could also try to email ATI and see what they say.
I think the SIS driver is for the Motherboard (ie the chipset AGP compatability driver for the MoBo).
I'll tell you where to get the latest standard ATi mobile drivers without the Very-FuK-Eh-Shun tool if you promise not to show it to anyone else :twisted:
Or you can just follow this link, which is the same thing;