Isn't there an "Is it Science?" forum here ...
But, the equation can hardly be called a complete description of the solar system. Where does it predict the planetary masses and day lengths? What about moons, asteroids and comets?
And how does he get from a bit of maths to "The math on this site demonstrates that the Solar System is ordered, but more than this, it demonstrates the activity of intelligence"? A demonstration of order (and most astronomers would accept that the solar system is currently fairly ordered - it's governed by gravity after all) is hardly a demonstration of intelligence at work.
Alan