Project Server SP2a & Project Professional SP2

Microsoft has released the service pack 2a for Project 2003 Server. It fixes the issues they had in SP2.

Project Server 2003 Service pack SP2a
http://tinyurl.com/bxau3

Description of Project Server 2003 SP2 here
http://support.microsoft.com/kb/887621

If you have modified PWA files in your deployment, then you should check this KB article before deploying Project Server SP2.
http://support.microsoft.com/kb/906357

Project Professional 2003 service pack
http://tinyurl.com/7twa8

Description of Project 2003 SP2 here
http://support.microsoft.com/kb/887620

To deploy Project 2003 SP2 across your organization check this article "Distributing Office 2003 Product Updates"
http://tinyurl.com/dgkhk