I've not had any experiance in Minecraft texture packs, but i had a look in the .zip and I found the textures i'm missing. But I cannot find where they should be in the texture pack to work. (Can't find the original in the mod pack at all)
Also the top texture for the solar arrays is missing for me aswell.
I have the most up-to-date 128x texture pack, but for the recomended build of technic. I know they are not to go together but i'm hoping I could find a way to fix it so it works with somebody's help. But I don't have the required experiance.