[CentOS] question on kvm

I had used and old kvm-87 on centos 5.4 x86_64

I was wanting ot update that and use the newer qemu-kvm-0.12.3
I downloaded that and everything was good there - but the kernel modules 
are not included.

So I downloaded (or started to download) kvm-kvod something... but there 
is nothing there for
2.6.18?

How do I get the correct 2.6.18 version?

Jerry