The whole story is on Queerty as the high school administrators are that site's official "Douche of The Week". I think it's great not only that Dawson can go to the prom but that he actually challenged the school publicly and won. It's a measure of how far things have come in terms of LGBT rights in just a few years. In 2005, my first novel A REALLY NICE PROM MESS was about a similar situation dealt with very differently, when the lead wants to take his b.f. to prom but does so secretly on a double date with two girls. (He's at a private school so there is not court-ordered option, and he's semi-closeted too.) Unfortunately, the secret gets out on page one and the night becomes a comedy of errors.
Fortunately for Dawson, his real world prom will be neither comic nor an error--it will just be a romantic night with his main squeeze. Cute! :)