Here are some video tutorials by Xorne (Jason Hibdon) at the Fantasy Grounds forum
Quick Start Guide Quick overview of the basic features of FG2, from both DM and Player perspectives. (24:26, 23.8 MB) Campaign Entry Basics Demonstration of the basic building blocks for building a campaign. (DM focused) (13:34, 13.5 MB) Adventure Modules In-Depth how-to guide for creating and exporting a campaign into an adventure module. (28:35, 31.8 MB) 4E_JPG Ruleset Overview From the character sheet to the combat tracker, a full walk-through of the ruleset. Note: This ruleset has no library modules, just blank character sheets and templates. (32:20, 29.1 MB)
Tutorial 1: Creating your iTabletop Software Account Tutorial 2: Creating an iTabletop Group and Adding Players Tutorial 3: Designing an iTabletop Game Session Tutorial 4: Inviting Players and Running Your Game Tutorial 5: How to Use the New Audio and Video Tokens