Texture Problems

[M'aiqTheLiar]

So I was playing through Telos (and having fun making tree and grass textures with gimp). Made it to the base, Speed boosted through all the droids and the tank.  And then during the shuttle scene where everyone is freaking out, I noticed the Pipes along the wall and the floors were pitch black. Finally pinned it down to "LEH_brwall03.tga & LEH_floor05.tga" deleted them.   Is there anyway to improve the quality of these textures without causing a blackout?  (I am assuming this scene comes from TSLRCM v186).

Thanks