This topic doesn't belong in Tech Support, but okay.
In the Tech Support forum, you'll see that there are two stickied threads. One of them is "an up-to-date guide for newbies playing FF7" or something like that. The first post in that thread links you to various editors that you can use to tweak your Final Fantasy 7 game. It also gives you information on what existing mods you should use, which ones you shouldn't use, which programs are now obsolete, etc. 'Tis all very useful, I'm sure you will agree.