Default [Q] How to you install texture packs in Mupen64?

I have downloaded Djipi's texture pack for the Legend of Zelda: Ocarina of Time. When I go into the settings menu in Mupen64, there is an option to import texture packs, but every time I try, I get an error message saying it ran into a problem unpacking the texture pack. Has anyone had any success installing any texture packs on any games?

Thanks!