SharePoint Setup is unable to proceed due to the following error...

If you receive following error message when you try to install install SharePoint Server 2007 on a server that is running Windows SharePoint Services 3.0

To resolve this issue, install Windows SharePoint Services 3.0 SP1 on a server that is running Windows SharePoint Services 3.0 before you install the 2007 Microsoft Office servers SP1.

To download WSSSP1 Click here