I extracted w_lsabreblue01.tpc as tga, and edited it on Photoshop, saved as tga but now I don't know how to import the one I made to replace the original w_lsabreblue01.tpc. 
 
 I'll be very thankful if someone can help.
 Kiloku
  
 
  
  
    Simple just place/copy the tga file you edited to your KotOR Override directory. ;)