How to configure IIS 7.5 to access website using IP address?

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http://serverfault.com – I order VPS hosting with Windows 2008 server and a dedicated IP Address , and install IIS 7.5 and DNS services on the server,I hosted 3 websites on the server, it works well, and I can use my domain to access my website, now I hope to use IP address to access my website, how can I configure IIS? Thanks! (HowTos)