hey im a big fan of the earlier ff games, played them fairly obsessively couple of years ago then moved onto the later ones. i have just recently played ff7 and ff9 again and it brought back memories of 4,5,and 6.
so my request/question/problem:

are these three games still available to buy, i used to play them on emulator but it would be easier to have the actual games. i already have ff6 for the playstation (although the loading times are an actual joke) can i get ff 4 and 5 aswell?
Now here is my next question if i get these games is it still possible to use my beloved cheat codes i had for them? bearing in mind that im actually using a ps2 to play on? because i really did love some of my funky cheat codes.
Any help would be grand.

ta, silverjunky