This is prolly irrelevant buttttt does it end in iwi or dds if it's dds use the fast converter. if its IWI and its not working in all the correct directories and correct naming try to convert the IWI file to that game. Just a little suggestion, since theres different IWI files for different games.
Edit: To make an IWI file DDS theres converters in the camo creation pack plutonium provided.