What is your objective? I will probably not be back here for several days, but that's okay, because there are a lot more knowledgeable people here anyway, and, given some more details, they may be able to lend some additional suggestions. A good starting point might be to determine which devices are on which circuits; with that information, you may be able to visualize possible paths. If you are attempting to isolate a problem, keep in mind that, if done properly, wire connections will only be made inside of receptacle boxes, lighting box, or other accessible junction boxes.
You can buy a tone generating circuit tracer kit (toner for short). You clip one part on a wire end or screw terminal (power turned off please) and maneuver the other part about wall and ceiling surfaces to find the route of the wire.
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