You need a program called unlgp to be able to unrar lgp-archives (FF7- gamefiles), or to be able to repack them again. Download UNLGP. Learn how to use it through it's readme-file and then do the following to install my addons. Readme in folder. 1. Back up your "char.lgp" found in your FF7/data/field folder. Then unpack it using UNLGP and rename that folder "char". You can unrar an lgp-archive by doubleclicking on the lgp-file after you have installed the program unlgp. Put all the field-model files in your new "char"-folder. Aeriths textures are now compatible! When you have decided who you want to add you should create a new lgp-file. You can do this easy by clicking on "swift" at the same time while you are right-clicking on the folder. Click on "create lgp" as it will be such an option. The file will then be created and you should wait until it finishes. Make sure the file is named char.lgp. Reppeat the same process for the rest in menu_us.lgp and battle.lgp. Tifa's Bootleg add-on.
I've released my new Elena Playable Character mod overhaul, swaping Elena with Tifa and vice versa. All in all 12 models touched, and the battlemodel was made compatible by Grimmy over at Qhimm forums last summer - while i did the rest the last couple of days.
I didn't use any material from the old Turks mod, with the exception of the Unshaded Elena World model (one out of two models for the worldmap - i've made two options) which already was included by me since before on my older computer, but i did fix some mistakes in it's overall posture and shape.