No, it doesn't. Well, it does, but you have to compile a particular kernel module into your kernel, and I have a sinking suspicion that you don't want to do that. And you're going to be hard pressed to install RH9 on a SATA HDD, even if you do have that particular module (can that even be done? I'll have to investigate that)
That said, you might want to give Fedora
a try. It's the newest free stuff from RedHat.