dmartin.com reports at the above URL: "Linux Red Hat 5.2 propose une installation en Frangais, mais si on choisit cette option on se bloque un peu plus loin ` cause de fichiers absents et on finit par choisir l'Anglais." Translation: "Red Hat 5.2 offers French during installation, but if one chooses this option, one is blocked a little further along because of missing files, and one ends up choosing English instead." I have not verified this bug myself, just passing it along.
Please check our errata section at http://www.redhat.com/support. We have posted updated boot.img and supp.img files that should correct this problem. The full URL for the update is http://www.redhat.com/support/docs/rhl/rh52-errata-general.html#BootImg