Project Server 2007 trial version to full version

Hi

I'm administrating Project Server 2007 and at the moment we have the 180 trial version, we have the licence key for the full version but don't know where to enter this could so we can have the full version working.

Any help would be apprieciated

I am sorry but if you have elaborated the query by telling which Project Server you are working on, if you are asking about Microsoft Office Project 2007, then while downloading the software it usually ask for the key, else for details analysis on this project planning software you can go through http://www.microsoft.com/project/en/us/project-server-2007.aspx