Quartz, don't feel bad about having to learn about all this. I'm in the same boat; I just got back to HLP about a week ago and I have to (re)learn everything also. Hell, I haven't used FRED almost ever, and the very few times I tried was all the way back in
2002. Yeah, eighteen years. I hadn't played FS1 or 2 in all that time either, but now I'm glad I'm back. Being able to repurchase FS1 and 2 from GOG.com was a godsend and finding a cheap Logitech joystick with 12 programmable buttons at Best Buy was icing on the cake.

But yeah, it seems I can't delegate the technical aspects of my still-a-gleam-in-my-eye Devil and the Deep Blue campaign to anyone else, so I have to learn everything I can about FRED and mediavps and sexps (that's pronounced "sex-peas," right?) and everything else. Before I can write the story, I need to know what sort of mission scripts can be made with FRED, and to do that, I need to learn how to use FRED, which means I need to know what the Freespace engine can and cannot do as well as what it can do now that it couldn't do before HLP and the rest of the Freespace modding community made their modifications.
I have so much to learn....