So, theme documentations is the best way to start with: http://support.jegtheme.com/theme/falive/
From installing theme & plugins to themes option and customizer.
1. Please refer to documentation about theme & plugin installation.
2. After setup theme & plugin, you need to create Homepage (page with Homepage template). Please read documentation for details: http://support.jegtheme.com/documentation/falive-page-template/