Jose,
¿Como estas? Te dejo unos links que pueden ayudarte:
https://support.microsoft.com/en-us/kb/816579
http://www.tek-tips.com/viewthread.cfm?qid=1680918
http://h30499.www3.hp.com/t5/Windows-Server-2003/Windows-2000-to-Windows-2003-in-place-upgrade/td-p/3640407#.VUkiH_l_Oko
https://www.petri.com/forums/forum/server-operating-systems/windows-server-2000-2003-2003-r2/13926-windows-server-2003-in-place-upgrade
Saludos,
This posting is provided AS IS with no warranties and confers no rights! Always test ANY suggestion in a test environment before implementing! Mi blog http://nicolasgranata.com