Yeah, it's real.
I can't make out the small print on these pictures, but the Globe says it contains this snippet:
"When taxes are too high, the high tax takes away jobs and freedom. In 1773 we had a Tea Party and this led to freedom from high taxes. Today we are having another Tea Party and this will lead to freedom from high taxes again! Ask grandma and grandpa what this means. Ask you friends what this means. Are you going to have your own Tea Party?" The text runs above and below a cartoon of a woman (the president? hmmm, wonder who that is) preparing to sign a tax code.
I love the picture on the front page, especially the fact that the tea party kids are from every race and culture imaginable. So much like the real Tea Party, yes?