Well, with the PC version they had a chance to go back and make a few changes. You'll notice that a few lines are different too (cant remember where exactly).
When Tifa slaps Scarlet on the Sister ray on the psx version, she calls Scarlet a wench, but in the pc version that was censored. I dunno why they decided to censor that, since its not really a swear word. If Disney use it, it cant be