Convert flats to .tga with this website http://image.online-convert.com/convert-to-tga for example. Find custom folder between Toribash files.
Inside that custom folder create a new folder with a name like test or cripplz2, paste in that folder all the images you want to see ingame and rename those with names of a body part. To know which names you have to put open a folder of a player that has full body texts and copy names.
Once you are ingame simply type /lp 0 <foldername> and magic will happen.