coldfusion 8 installation problem

IHello,

We have tried installing coldfusion 8 on a windows 2008(64 bit) with IIS 7 and the installation completed with errors.
 I tried running web sever configuration tool but it throws error as follows.
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# Created by JRun on 04/16 03:11:29
04/16 03:11:29 info Macromedia JRun 4.0 (Build 108487)
04/16 03:11:29 debug Created file C:\ColdFusion8\runtime\lib\wsconfig\jrunwin32.dll
04/16 03:11:29 error Cannot run program "pkgmgr": CreateProcess error=2, The system cannot find the file specified
jrunx.connectorinstaller.ConnectorInstallerException: Cannot run program "pkgmgr": CreateProcess error=2, The system cannot find the file specified
      at jrunx.connectorinstaller.IISWebSites.getWebSites(IISWebSites.java:242)
      at jrunx.connectorinstaller.IISWebSites.getSiteName(IISWebSites.java:220)
      at jrunx.connectorinstaller.WebServerInfo.setWebServerDirectory(WebServerInfo.java:354)
      at jrunx.connectorinstaller.WebServerInfo.<init>(WebServerInfo.java:109)
      at jrunx.connectorinstaller.ConnectorInstaller.parseArgs(ConnectorInstaller.java:172)
      at jrunx.connectorinstaller.ConnectorInstaller.<init>(ConnectorInstaller.java:56)
      at jrunx.connectorinstaller.ConnectorInstaller.main(ConnectorInstaller.java:757)
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The IIs configuration steps are shown in url http://gisnet.cstx.gov/cfdocs/htmldocs/help.html?content=configuring_07.html#1175085

Any ideas?