First, I have a small bit of advice: Listen to what people are saying about the Tea parties. Which ones are sounding the most hysterical and screaming about the Tea parties and what they stand for the loudest? Chances are they're the ones that are lying. And who is screaming the loudest?? Why, the Left, of course.
Second, take a look at the Contract From America. It explains the main tenets of the Tea party movement. It's a short read, with only 10 parts, and each part only a small single paragraph. It will take all of two minutes to read.
Third: Take look at this video by Bill Whittle. It pretty much explains the core beliefs of the Tea party and its supporters. (This video is only Part 1, with more to follow.)
Nowhere in the video or the Contract From America is any mention made of religion, abortion, homosexuality, or stealing from the poor to give to the rich. (By the way, who would want to 'steal' from the poor? They don't have any money to steal, something the Left always ignores.)
It's all about letting Washington and the various state governments know that we're all sick and tired of being told by people nowhere near as wise as we are nor anywhere near as experienced how to live our lives. We're all sick and tired of having our hard earned money taken from us to be spent on things we don't need, don't want, or find so wasteful as to be no better than theft.