CentOS is different from Debian, so you will have to make some changes to the tutorials (unfortunately I don't know which ones because I haven't tried them on CentOS).
One difference, for example, is that CentOS uses yum instead of apt-get to install packages, so where I use
apt-get install package
yum install package
(the package names might also differ slightly).
The locations should more or less be the same.