MS Project Server 2002

I have installed SQL server 2000 + Analisys service both sp3, IIS 5.0, Sharepoint, Projectserver in windows 2000 server with sp2 (all in one server). The problem is that I can’t open the project issues, but I can open Project documents, and then I found out and error while saving changes on the page for modifying server information for sharepoint. It shows 1-5 point about the cause of the error, but all are right for those 1-5 points. This problem alway happening from the start I install the server (I have re-install all products, including w2k server, and it’s still the same). Please help me.