Well, i'm trying to work on a set, w joints, and when i'm tryn to see the texture in game, i can't see it. I saved the file as j_neck.tga, still no result.

Double check the exact Width x Height of the file itself.

who did u put the joint on?
if u put the joint on yourself it wont work because the game downloads your textures automatically
and you have to edit the item.dat so the person you are going to try the joint on have the joint items
id prefer you try to edit the joints on someone like trestet or something

Make sure you are using default or pure joints and to /lp 0 tori then /lp 0 namehere so that the customs update.

You can also use ivory if you dont want the th textures to appear orange

do not dl yourself
just lp and it should work
save files 512x512

Don't forget to change the item.dat-file for the player you're trying to equip.

just delete the item.dat file from the folder you put in the texture and it will be shown (without force/relax or other items coz they contain in item.dat file)