We reported earlier about the Unofficial SiS AGP/IDE Driver 1.09m and if you've been waiting for the official drivers the wait is over.
Now SiS have them listed on the official drivers pages for the following chipsets: SiS630, SiS730, SiS735, SiS733, SiS635, SiS633, SiS645, SiS650, SiS740, SiS745

Download Official SiS 1.09 AGP Driver