Trying to install trial version

Hello, I downloaded a trial version and received an INO414.xml file. When I run the installation and specify this file for the license, I get an error message: The license file does not include the Windows version you are using. I am running on Windows 2000 Professional and the following entries are in the XML file: w2000p, w2000s, winxp_pro, winxp_per Is there another entry I need for this to work? Jesse

Some other information: I am running Windows 2000 Service Pack 4, using IIS.