[ThomasThomas]

You can use “save as” to save a file in the 2003 format in word 2007.

[Richard Kimball]

You can, but it’s clunky. There’s a default back to 2003 compatibility also. It’s just a little annoyance. You get warnings that some of the features won’t work every time you save, and it’s another string of popup menus you have to click through to get your work done.