Here's how to backup your IIS7 configuration on a Windows 2008 server:
Log into the desired machine. Make sure it has Operations Manager 2007 components with an account that has administrator rights.
Open a command prompt by using the 'Run as Administrator' option and to go directory listed:
% windir % \system32\inetsrv
At the command prompt, type:
> appcmd add backup
If you do not include the name of the backup, the system will name it for you by using a date/time format. Your IIS7 configuration backup has now been created.