holy crap a tripple post lol
dual booting seems pointless doesn't it? the computer is either for games, a server or working with stuff like Word. they are have conflicts which each other so it's best to just stick to 1 OS.
just put the boot image on a floppy (it's in the manual how). put the floppy and CD1 into their respective slots then restart the computer. when the install process kicks in, just try to answer the questions as truthfully as you can and if you don't know the answer to what it is asking, don't pretend to know the answer.
a mouse is very handy for installing RedHat.