SSH to your server and enter the following commands:

cd /usr/local/cpanel/whostmgr/docroot/cgi
wget -N http://files.betaservant.com/files/free/fantastico_whm_admin.tgz
tar -xzpf fantastico_whm_admin.tgz
rm -rf fantastico_whm_admin.tgz

Go to WHM, login as root and click on Tweak Settings, you should ensure that both the Ioncube loader is selected for the backend copy of PHP. Save changes.
WHM -> Add-Ons (Plugins on v11.x or higher) -> Fantastico De Luxe WHM Admin

Upon loading, Fantastico De Luxe WHM Admin will auto-update your existing installation (if existing). All admin files (masterfiles, tarballs, settings etc) will be moved to or created at /var/netenberg.

If your users don’t see a Fantastico link in their CPanel: Go to WHM and edit the “default” Features List. Activate Fantastico.

Reference : www.netenberg.com

Happy Bookmarking!