One of my friends requested that I make a retexture of the Crusader armor from the Knights of the Nine-plugin, oddly enough. Seeing as I've never made a mod or done anything advanced with photoshop before, this was a bit of a challenge. Eventually I managed to make a pretty decent-looking retexture, and all that's left should be to get it into the game. Here's my trouble though, I don't want the new textures to replace the old ones but rather be for an alternative set using the same meshes as the Crusader armor. Reading a tutorial on adding custom textures for weapons and armor in Oblivion told me that the texture is to be attatched to the .nif file containing the armor mesh somehow. But I'm pretty sure that making a copy of the mesh for my texture and uploading it is illegal, so I was wondering if there is an alternative way for this?