When installing applix 4.3 under 5.9.7 is breaks because it cannot supply the install path and gives, rpm: only one of --prefix or --relocate may be used I'm not sure if this is because whoever packaged applix did it incorrectly, or not, but since you sell both, I assume having the install work is in your best interest.
Bug 2347 is being closed as Red Hat no longers sells Applix, and no longer supports Red Hat 4.2->6.1. If my memory serves correctly, the Applix rpms were bundled by the applix company and so the fix needed to come upstream but never did.