KDE 4.3.2 on opensuse 11.1 x86-64

I’ve installed 11.1 x86-64,which download from kde.org,it’s a live CD pack with opensuse,with Linux x86_64, (KDE 4.3.2) “release 5”. My laptop is Compaq Presario CQ40-115AU,with AMD Turion 64x2 processor & 780G board,ATI HD3200 graphic card. Everything smooth,now I’m planning to install the ATI latest 9.9 graphic driver for my HD3200 graphic card,I need some advice on this coz the driver is new,I don’t know whether it work fine or would crash my lovely system. Anyone success on this? And if there’s new kernel update available after ATI proprietory driver installed,what should I do before update the kernel? Thanks bro.