Assuming you have two tga textures with exactly the same name, the one in the higher hak will override the lower. On the other hand, if your "new" texture is in the override folder it will NOT override a texture in a hak... If that's the problem, you just stick your new texture in a hak higher on the Module list than the one the original is in.
Otherwise... are you certain the texture you're trying to override is ONLY a tga?
Often there may be both tga AND dds versions of a texture in a hak... A dds version of a texture will always override any tga version, even if the tga is in a higher hak.
Use NWExplorer or such to check there's no dds version of the original texture. If there is, KILL IT, KILL IT... then your override should work.
(If this is the problem but you don't want to actually delete the original texture, then you'll need to convert your new tga to a dds).
If, as I gather, your override texture is in a custom top hak above all others and has exactly the same name as the tga you're trying to change, then a dds duplicate is the most likely source of the trouble. Hit it with a Big Brick.
Modifié par PLUSH HYENA of DOOM, 01 décembre 2013 - 01:39 .