To put what she's saying in a nutshell...
1). Create an External GFX
2). Animate Bone Used (Throw Bone is best)
3). Attach External GFX to the same bone with the External GFX Event (11010A00)
4). Attach Hitbox to the same Bone
5). Have a Requirement in the special that'll change actions when the Hitbox Hits.
That's what I'd do.
I skimmed it a bit and made it to my liking... lol. Don't worry about Animating the Hitbox though... lol.