Do you ever wonder how long we support our software and software updates such as Service Packs for instance? For instance how long will Project Server 2007 Service Pack 1 will be supported? All the answers can be found on this site: http://support.microsoft.com/lifecycle/
Some useful links:
or check these links for more:
As a reminder, Microsoft Project Server 2003 Mainstream Support Retired on April 14, 2009 , as show on