You can probably get 99% of the content of that hack at ffhacktics.com. I think it's FFT Complete or The Lion War, with some other junk welded on it.
Make a thread there and someone will be along shortly with recommendations for you. Given the recent behavior of the hacker that made that mod, mention that he made it and link to the RHDN URL, and someone may debug that battle and the events used in it - fixing it for you - so they can laugh at him.
I personally recommend these hacks: "Journey of the Five"
and "The Lion War"
, though unfortunately for me the former doesn't work on a PSP or PS1 yet.
There's also the best FFTA/2 hacking community there, and there are a few FFT mods at NGPlus