Child pages show Parent Loop content: Error

http://solar1.org/events/dance/
http://solar1.org/events/dance/2005/
http://solar1.org/events/dance/2006/
http://solar1.org/events/dance/2007/

I have a set of three child pages underneath one parent but they all display the same content from the loop. In the admin panel, they all have different content. I tried playing briefly with a query_posts($query_string) but this did not resolve anything. The same error happens on the corresponding set of Film pages.

Any ideas as to why none of the child content shows up on these pages? It seems to me like it may be a function of it being a third level child, but I don’t know.