1. Need some help with this reskinning error

    Hi, im basically trying to reskin a big boy, but when i try to change the texture, it gives me this error "Couldn't load "bb_main.tga". Only 256 colour, 24 bit and 32bit TGA supported." i tried to change the image to 32 bit and lower, and i use paint.net for reskinning, then it gives me this.
    Click image for larger version. 

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    If anyone knows how to fix this, then it would be great.