Information is somehow a bit lacking on which version works & which fix works. Give it a few more days, maybe someone will post report with better details ... something like, "Hey I have this (insert version here) version, did apply the fix files from here (insert URL), and finished FXIII-2 last night! No freezes, no save file problems!" I hope ^^
You might want to wait for such a confimation, but it would probably be faster to just rip your copy, and then try by yourself the three steps I mentioned in the previous post. Who knows, you might only need to apply step 1 or 2, and not needed to DL extra Gigs (step 3).
Good Luck ^^