Hmm, no such luck here. Switching those two files resulted in a crash for me, even after padding the 'raab' file to match. Thanks for the suggestion, though.
I wonder if this data is located in 'ff7.exe.' I hope not, as I'm not sure how to modify the executable file.
Edit: Oops, I think you meant 'rtab', which worked. I see what you mean by skewered, but at least it worked.
Now if we could only find a way to change what he does in the limit break, maybe just link it to a spell or summon, it would work flawlessly.