How do I read guitar tabs?

go on to 'ultimate-guitar.com'. .........the lines are the 6 strings 'e,a,d,g,b,e' the 6th string'e' is the bottom line. the #s on the lines are the frets were you put your fingers......ROCK OUT YOUNG GRASSHOPER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! TIS VERY FUNNNNNNNNNNNNNNNNN!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!