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Are you saying that you cannot locate the fuse box or you cannot locate the specific fuse in the fuse box under the instrument panel as indicated? The only thing that is inoperative at this point is the taillights?
The 10 amp taillight fuse is located in the instrument panel fuse box as you've already figured out. The diagram above is accurate that he posted. There may be some confusion because there is a black plastic cover that snaps over the fuses themselves. If you're sitting in the driver seat your left foot will point directly up to and fuse box panel. The exact location of the fuse in the fuse box is indicated as you can see below.
Let me know if this clears things up or if you need further information and if the fuse is blown.