Robert,
Any confusion here is simply a matter of semantics; there was quite the discussion here about five years ago and the gist of it was the process is like electroplating, only in reverse. I use a battery charger, a five gallon plastic bucket, and some steel rods. Connect the negative end of the charger to the steel rods (the more the merrier; I use four) and the positive side of the charger to the rusty part (check what I said because I may have that backwards) with some TSP disolved in enough water to cover everything and the results are amazing. Be sure the rusty part doesn't touch the rods or the charger will short out and process will be negated, and if the wires are connected backwards the worst that will happen is you'll plate the part with steel over the rust, which is easily rectified. I'm too lazy to research the old posts right now but it shouldn't be difficult to locate the old threads about the process. If this is how you're already doing it maybe a newer member will benefit from the knowledge.
-Randy