Are there audio samples of what each effect sounds like? If so where? Can there be?? Please?

Er, no - and no. What an effect sounds like depends entirely upon the source material you feed it - your audio. So there is no way that you could create a representative version of an effect at all. And that's why there aren't any. And won't be. There is no such thing as the way an effect is 'supposed' to sound either. Most effects have controls on them that can alter the way they sound considerably - where would you start?

I'll tell you the answer to that one, actually - your ears. You experiment until you find something that sounds like what you are after. There are plenty of articles around where people tell you how they created some of the effects they used, and these are generally the starting point for your own experiments. So I'm sorry - but to get the best out of audio processing, you'll have to put some effort in.