you have to configure grub or lilo, whichever you chose for dual boot
try liloconfig or grubconf while logged in as root in a terminal
your probably also going to have to configure X, use xf86config or xorgconfig for that
then you can work on your network(internet access)
I dont know what hardware you have, how you access the internet, or any other info, so how am I gonna answer that?
Also, I CANNOT ans WILL NOT walk you thru every step, there's too many options and possibilites and a person could spend days explaining all this to you.
http://www.tldp.org http://www.lowfatlinux.com http://www.redhat.com
also, google for a redhat tutorial, your going to have to do some reading and learn this stuff the hard way, and its the only way to learn it, you have alot to learn
I can help with specific questions, but I cant walk you thru everything, especially since this is the second time ive mentioned this before, learning linux comes down to reading and trying stuff out on your own, and there's no shortage of places on the web with guides and instructions.No its not windows, it isnt going to be all point and click, and your going to have to learn about PC's and computers or your going to be lost,just the way it is.Be patient and learn a little at a time, ive been learning linux for about 7 years, I have lots to learn too.