Ok totally stuck with this, I'm working on http://www.tamarakretzer.com and it works with the default permalinks, but when you change the permalinks to /%category%/%postname%/ something strange happens. All the pages and category pages are fine and display with pretty urls. But the children pages screw up and won't display using the template that I assign to them when creating the child page.
I can't work out which template it is reverting to either so it's impossible to edit that template.
Is there anyone who knows anything about how to get to the source of this please? It's driving me nuts.