Enkompass - running a site on VPS without domain name

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http://serverfault.com – I have Enkompass setup on a test VPS that does not have a domain pointed towards it. How would I be able to create and test some PHP web applications, and have them work from port 80 from the IP of the VPS? Ex. Creating a new account in Enkompass didn't seem to create a new site in IIS, and I don't know how to actually view a test site. I'm not using Enkompass for reselling purposes, I am just hosting some personal PHP web applications. (HowTos)