Once you get the license, SSH to the server as root.

cd /usr/local/cpanel/whostmgr/docroot/cgi/
rm -f rvsitebuilderinstaller.tar
wget http://download.rvglobalsoft.com/rvsitebuilderinstaller.tar
tar -xvf rvsitebuilderinstaller.tar
chmod 755 addon_rvsitebuilder.cgi

Login to WHM as root, you will find RVSiteBuilder Installer menu under the Plugins Section.

Click RVSiteBuilder Installer to begin the installation process. You will be redirected to RVSiteBuilder Manager after the installation is complete.

Happy Installation

Happy Bookmarking!