Are you sure you have Itanium based hardware? If you are a home user you probably need a Windows Server 2008 x86 (32bit) or if your processors supports it Windows Server 2008 x64 (64bit). If you are unsure, download and install a Windows Server 2008 x86 version from http://technet.microsoft.com/en-us/evalcenter/cc137123.aspx.
Good luck! If you have any other questions, don’t hesitate to ask them! 😉