im not sure the url is redhat.com but see if yu can find their corporate web page. one thing i can say about redhat is that their ftp server is pretty doggone extensive... if im not mistaken they have an archive of older redhat distros like 4.2
which, of course, brings me to another idea ive had for a while. if youre a linux freak like myself you may have wished for a damn linux box set from your favorite distro...take suse for example, they sell a box set of cds with the 7 series, the 6 and the 5 and back to the very first kernal put out by linus... thats pretty crazy huh? well dammit, id buy it, yu bet yur ass...