An updated psacct package has been released for CentOS-3 x86_64
A new psacct package is available for CentOS-3 x86_64. Refer to https://rhn.redhat.com/errata/RHBA-2004-497.html.
RPMS/psacct-6.3.2-28.rhel3.x86_64.rpm
SRPMS/psacct-6.3.2-28.rhel3.src.rpm
Execute "yum update psacct" to apply.