how do they customize gnome this much

i took that from the screenshot thread, there are some cool desktops but how do you get it to be that customized, I am running gnome, the one that comes with redhat 8.0.
thanx in advance

What you see running there is the GNOME (www.gnome.org) desktop environment AND Enlightenment (www.enlightenment.org) window manager. The screen custimazation that you are referring to are called themes. Themes for Enlightenment are found at: www.themes.org.

does enlightenment run on top of gnome?

from http://www.enlightenment.org/pages/faq.html

What is Enlightenment?
Enlightenment is a window manager for X. Its design goal is to be as configurable as possible - in look AND in feel. Enlightenment's current design aim is to become a desktop shell. That means it will manage your application windows, being able to launch applications, and also manage your files.


What's E's relation to Gnome and KDE? Is Gnome supported? Is KDE supported?
E 16 supports both Gnome and KDE. In E 17, you will be able to use both Gnome and KDE *applications*. However, given that E 17 will be a desktop shell, this doesn't mean that all parts of the frameworks (such as desktop-oriented file managers) will work.

Enlightenment and GNOME run together (although they aren't required to coexist). That is, you can run GNOME concurrently with a variety of other window managers (not just Enlightenment).