1) I thought about showing FRED launching but I figured that between the long load time and the fact that it's not particularly interesting I wouldn't bother. Maybe I'll just start with FRED iconised down instead though.
2) That's not a bad idea, downloaded.
3) The quickstart (for both FS2 and Diaspora) is all about teaching someone how to make a mission really quickly. Basically it's for those who only want to make a few quick dogfight missions to check out who would win between a heavy raider and a raptor, etc. That's why I didn't bother explaining the interface or the theory behind mission design. People who just want to slap together this kind of mission are either only ever going to be dabblers in FRED or are worried that FRED is too complicated and want to make something really simple first. When I make the proper walkthrough, I'll explain all those things.