[Users] Installing oVirt with existing VM

Hi all, i'm new at this list and ovirt too! I'm looking at something to manage my vm and i found ovirt. The situation: Host: Centos 5.7 x86_64 kvm (intel) Guests: 2 * centos 5.7 i386 I can't find much documentation about, so i have a lot of doubt. Can i install ovirt to manage existing guests? Can i install ovirt on another machine (i've a centos 6.3 x86_64) and manage the one with kvm as a node? What are the steps to do? Thanks in advance and excuse my little english. Forlani M.