Hello OpenOffice.org,
I see on the 2.0 RC1 site, there the following statement
** NOTE: For right now, Windows user will have to remove older Beta and developer builds prior to the installation of the RC because of an incorrect interpretation of their version information by the Windows Installer.
As I do not know their project structure, can someone in the know of the OpenOffice project structure put a link in a comment where I can find more information on the incorrect interpretation?