For people who want to use or test SCIM [1] on RHEL 4, an unofficial yum repo of scim packages is available at
http://people.redhat.com/petersen/scim/
for i386 and x86_64. The packages are currently from Fedora Extras 3 and of course unsupported on RHEL. They are to be used at your own risk and please report problems directly to me.
Jens Petersen
[1] Simple Common Input Method: http://www.scim-im.org/
i18n@lists.stg.fedoraproject.org