Hahahahah. Ahem, sorry.
Well, when you click the link it doesn't show me anything about Aeris Mods. PSX? as in the actual machine - You need a gameshark. Emulator? Well get a gameshark program. PEC works.
None of those sidequests/rumors work. You should note that you can't get Zack, fight Sapphire WEAPON, get a Silver/White chocobo, or anything else that requires you to use random items or talk to special people etc. Also, stop putting your discs into the drive upside down. That does not revive Aeris.