Hardware Driver Problem In Suse9.2

Hello,

I have SuSE 9.2 running in my laptop Compaq Presario 2800.

During the installation, SuSE recognize my laptop as presario 2800 which is a such big surprise to me, but when the system is loaded, many of my hardware are unknown, such as my modem, mother board bridge, and even my main memory and CPU(Mobile Intel P4 2.2G)!
I run "cat /proc/cpuinfo" in the console, and it says my CPU is running at 1.2G!

It seems SuSE recognizes my hardware well but doesn't load the proper driver automatically, how can I do it manually, by "modprobe" or something?

Any solution please, thanks in advance!