Or, try one of the mainained projects available at linuxiso.org. RH9 is out of development, and as such is becoming outdated. If you really want to try linux try knoppix <
http://www.knoppix.org/> or morphix <
http://morphix.sourceforge.net/modules/news/> both of which are liveCD iso images (Meaning they run off the cd, without touching your real hard drive.)
Then, if you like that, move on to somthing like the fedora, or debian. Because this is linux remember that you are learning a totally diffrent operating system, things will be diffrent and it is best to learn from the ground up. Get used to the console, then begin to understand the basics of X. Use the liveCDs as somthing to point your own growth towards.
BTW though, Congrats on giving somthing new a try.