Ive been trying to get custom textures ive made into the game but WoW for some reason doesnt want to read the damn things. Just turns out black or it doesnt show it.
I tested viewing the blp files with a blp viewer to make sure it wasnt garbled or anything like that but it read it perfectly.
Ive been using this tgatoBLP2 converter http://tech.wc3campaigns.com/