Today, I'll show you how to setup some basic XenServer stuff and install a guest OS. Open the Management Console and log into your XenServer. The first thing you'll need to do is add a storage repository. I guess you could install via a CD, but I haven't done that. I just download the ISO, put he ISOs on a NAS (Network Attached Storage) and pull from that. You could also burn the ISO to a CD or flash drive. For a CD, use ImgBurn. For a flash drive, there are tons of options, but uNetBootin is the most common.