MS W. 2003 Server and ASP.NET v.2.0 and MS Office Groove 2007 Server

Hi,
I have problems installing MS Office Groove Server 2007 on newly installed MS. Win 2003 Server. It always shows that ASP.NET v.2.0 has to be installed. I have all the .NET Frameworks (including 2.0) and it still does not want to install. In inetmgr there is only option of ASP.NET v.1.1...
How to install ASP.NET v.2.0 so that I can install Groove?

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