This is an overview of the program itself. I try to cover what every button does. Feel free to skip ahead. You may want to watch directly on youtube so the links below are clickable:
1:40 - Map Properties
5:03 - Toolbar
7:40 - Drawing a Map
9:13 - Game Properties (keyboard remapping)
11:00 - Database (Actors, Items, Weapons, etc.)
15:36 - Tilesets
25:55 - Resource Manager ("DLC" and RTP)
28:28 - Script Editor
31:14 - Built-In Character Generator and Game Character Hub (separate program)
33:47 - Events, adding an NPC and simple event
39:34 - Regions
Part 2: Basic Events and Quests in RPG Maker VX Ace (Beginner Tutorial #2)