HI,
Sander is correct, but you can buy a 2007 license but install 2003 instead
and use the 2007 box as the license for the 2003 install. So, if you do
upgrade to 2007 you have some 2007 Pro licenses.
--
Rod Gill
Microsoft MVP for Project
Author of the only book on Project VBA, see:
http://www.projectvbabook.com