How to replace dumped texture (non palleted) with entirely new texture (tenkaichi 3)

[pepodmc]

Hello. I want to make a texture pack for the game "Dragon Ball Budokai Tenkaichi 3".

Various textures of the game are non palleted textures (black and white). And i want to replace some of them with new textures. I mean, not the same texture but upscaled. Im talking about an entirely new texture. But the texture looks all messed up.

How can i replace non paletted textures with a new texture completely different than the original?

[Venomalia]

even if they are black and white you can upscale them without problems, you should only sort the viedeo fames out.