I have taken several of them due to my particular government service.
The first one I took, I lied on and everything went well. After that, inconclusive. The last 5 were all with the same questions and I think I drove the polygraph operator crazy, I know I pissed him off. I told them in advance that it will not work with me if I so choose and was told they work on everyone. It was fun but since then they no longer test me.
If you find a biorhythm training device, it does not need to be an expensive one, and learn to control the light or tone at will, you can do the same with the polygraph.
The "E-Meter which is used in Scientology works on the same principle. It is much more simple but depending on thew operator may be just as effective. I was for a short time inside the "church" as a "member" and went through various activities. Just before the time I was to leave the "church", I was hooked to the E-Meter. As soon as I was hooked up and the machine was tuned, I decided to play. I told the operator the needle would peg to the right and it did. Then to the left and again it happened. I ended the session by standing the meter straight up in the center. The operator quickly unhooked me and told me to never touch the machine again. It does not take any supernatural abilities, just lots of practice and learning . The bio-feedback monitor is a good tool to start learning the necessary self control and discipline to consciously invalidate the lie detector.
I cannot say anything about TAPS, I have never seen it where I am.
As for the things you see and hear, do not worry about convincing the skeptics. Until science finds a way to adequitly test and prove either the existance or non-existance of things there will always be those who say that there is no proof sotherefore it is not true. Until 1954 "science" minded persons believed it was impossible to run a mile in under 4 minutes and could be hazardous to a persons health to attempt it. Not only was this proven to be a mistaken belief by Roger Banister, John Landy did the same 46 days later and just a few years later, it was done another dozen times. There arethings being done, tested and researched which in time will put a new understanding of many of todays "scientifically" accepted ideas. Keep a journal of your experiances as they are without trying to understand and explain them, this may be useful later. If you write what you think or interpert with what you see and hear, keep a second journal paralell to the first. One as a witness and the second with the event and your understanding. It will help you to better work with it.
Good luck and have fun!