The redhat install is pretty straight forward as I recall it. In any event the install guide is here
. I'd read through it before starting the install, so you're familiar with each step.
Unless you have specific use for the machine you should probably accept most of the default values during the install. I only say that because it is much easier to troubleshoot a "default" install than a custom one in the event you have a problem.
If the install runs without having to go to text mode then you should at least be able to use the vesa driver and get a gui to work from.
Good luck. ;-)