ok so the alphas are the dds, png, and index file that fshline extracts? and wen u say copy over the alphas do u mean 2 copy the good players index to the shiny players folder and replace the shiny player's index?,
You would only copy the .bmp files (there are 2 if it's in 512x512) that look like a weird mask, or that show the sweat if you're using Pdub's patch, and paste them in the folder that doesn't have alphas (but it will have two blank .bmp, they'll appear as white, so you need to overwrite them). These are the "alphas", not the "bhed" (which show the player's face).
Then modify the index.fsh your player's folder by following the process in my previous post.
i have one more question about fshline too, how would u double the resolution of a fsh file in fshline? lik 2 change a 256x256 to a 512x512?
As far as I know, you can only double the resolution with FshX (you should try to download it again just in case), but maybe it can be done with fshline too, since the index.fsh mentions the resolution as well...