Resolution
To install SharePoint Portal Server on the same server
as Project Server, you must follow a structured approach by completing these
high-level steps in this exact order:
1. Install
SharePoint Portal Server 2003
2. Run WSSWIZ.exe
3. Create a
Portal site on the default web site
4. Create a WSS
site
5. Install
Project Server
For detailed instructions on installing SharePoint
Portal Server and Project Server together, see the following KB article:
http://support.microsoft.com/default.aspx?kbid=840701