[Fedora-xen] heeeeeeeelp on XEN

hi gurus i'm a newbie to xen and like some guidance... i have an existing machine that has FC5 and i just installed XEN3.0.2.2.. was able to boot the machine using XEN... i know the next step is to create a guest domain but my problem is how do i create an image of the existing FC5 since it has some data already (would be nice if you can give me the actual command).. also once i created an image of the existing FC5, where do i dump th image file and have xen boot from it... thanks Gary