Event Hacking question

So to in actuality i'm looking for the event 11B4E (CB/1B4E -CA000), correct? Its the event just prior to the coin flip scene where Setzer puts Celes in the room and says he'll come back later. This should make Umaro visible because the event is already defined by previous coding, correct?

EDIT- well 11B4E displays umaro still, but when I talk to him it awkwardly goes through the previous scene. Once that's completed, I am back at the "empires made me a rich man scene." So not it either.

The event field is what gets executed when you interact with the NPC. It has nothing to do with whether s/he should be present.

Read Edrin's post above. It's a good tutorial to beginner's event hacking and should give you a better idea of how all these different elements interact.

by a caption call are you referring to 'display dialogue'? or something else entirely.

Correct. 'Dialogue message' and 'caption' are interchangeable terms in this case.

I may have to try on a fresh rom to see if that solves the crashing. How can you tell that the game is crashing before hand already?

Mainly because of what you said earlier about the game crashing at the coin flip. That happens well before any of your changes were implemented.