There is an update to openoffice for CentOS-3.1
https://rhn.redhat.com/errata/RHSA-2004-160.html refers.
Updated files are :-
updates/i386/RPMS/openoffice.org-1.1.0-15.EL.i386.rpm updates/i386/RPMS/openoffice.org-i18n-1.1.0-15.EL.i386.rpm updates/i386/RPMS/openoffice.org-libs-1.1.0-15.EL.i386.rpm
updates/i386/SRPMS/openoffice.org-1.1.0-15.EL.src.rpm
These are available at http://mirror.centos.org/3.1/ and should be on all mirrors within a few hours.
To update to the latest version 'yum update openoffice.org' should be sufficient.
Lance