Well first of all we need some more information from you. For example, what level are your Sora, Donald and Goofy? What abilities do they know? What equipments and items do you have equipped to each of them? Honestly, being only the second boss in the entire game, you should not be having nearly this much trouble. I beat Trickmaster in under a minute. Literally.
You do not need to put out the flaming torches, either. Just avoid them. The easiest way to win this fight is to stay at a distance, lock on to him, and cast Fire over and over again. Once you run out of MP, it should be almost dead, so just rush in to jump and attack as much as possible. When he rears up, just jump far enough away from him. Dodge Roll helps a great deal here.
The Final Mix edition on the PS3 changed many things to the original KH, including the colors to many of the Heartless.
I beat Kingdom Hearts literally more times than I can count. I already beat Final Mix on the PS3, twice. I stopped playing Disney Infinity once HD 1.5 ReMIX came out lol. Its my favorite video game series of all time and there is nothing that I don't know. Seriously, try me. So if anyone else has any other questions, feel free to ask me.