Use more punctuation.
Right, let me get this straight: you want to break the damage limit. You did this by downloading certain files, then using an ISO editor to swap them over.
Firstly, I assume the files you obtained are patch files, not complete files. Importing these will cause the game to go belly up - you need to apply the patches.
Otherwise, tell us the error / messages from Ultra ISO. Did it tell you the file needed to be padded / truncated?