I'm using Fedora core 3 with GNOME how can i install & icon themes & mouse themes

I also would like to know this:

So far (in Gentoo) I was able to download a big wad of cool icons from the Gentoo site,
and I learned to make 'launchers' by Right-clicking on the desktop area.
From there you can browse to give your desktop 'launcher' a custom Icon.
That's as far as I've gotten.
I was also able to install a package of 'themes' for Gnome via the 'Portage' auto updater.
But I only saw 2 or 3 default themes actually installed on the configuration menu.

Applications --> Desktop Preferences --> Theme (menu click)

mmmmm and gnome.org no help?

Icon themes can be extracted into ~/.icons or /usr/share/icons (or whatever prefix that gnome is installed in e.g. its /usr/local/share/icons on my Slack system). As fo cursor themes, there are some examples of how to do this in the X cursor themes section at kde-look.org.