Archived from groups: microsoft.public.windowsnt.terminalserver.applications (More info?)
It's no different than installing it on Windows NT or W2K.
Put the server in install mode ("change user /install") and perform
the installation. Run the Application Compatibility Scripts for
Office97, and you're good to go.
You will have to copy the ACS from a NT4 or W2K TS, or download
them from a website, since they are not included with Windows 2003