does any1 know how to change the names of textures and still have them work with the mods they came with because i got a few which the filenames are to long.

after no responses to my question i desided to find out by myself and have found that the filenames for textures and for there directory is contained within the meshes those textures are for. i have edited this with a hex editor but am looking for the object to see if this method works. if not i guess it would have to bwe changed in 3D modelling software which supports nif files