Hey Allison. :3
I know I'm not Red, but I think I can help.
So in FH, the mane/tuft texture is shared between feline and canine models. Because of that, when using the IT Feline Texture mod, it'll also affect the manes of canines. There's not a definite way to fix it, from what I know at least, the only way is to keep the original mane texture file.
Of course, by doing this, the feline models will have the mane texture back on them, but the canine models won't look so awkward once they have their original textures back. Although, if you really want to keep the IT texture but also want the canine texture to match, I would gladly make a new canine texture that looks similar to Red's IT Feline Texture for you.
Sorry if I made that more confusing than it needed to be. ^^'
