If so, not to worry. ComicsDC had people there covering them for you. We got audio recordings of both events. The Library of Congress filmed the Little Nemo presentation, and it'll eventually be on their website, but for now, you can listen to it here. Click on the title to be taken to an audio file.
DRAWING ON HISTORY - Little Nemo: Dream Another Dream
Bruce Guthrie has photographs of their presentation on his website and you can follow along by syncing his pictures and the audio.
Dylan Horrocks was last at SPX in 1999, talking about his book Hicksville and bring a traveling exhibition with him.
He's back and better than ever.