Audrey,
I have just experienced the same problem with my own site, as shown at the address you provided. After discussion with a colleague we concluded that for some reason (unknown) the navbar info was being read from my hard drive, which I still do not understand, but we cleared all the Temp Files on my harddrive and my Xara Script work first time.
Worth a try http://www.talkgraphics.com/images/smilies/wink.gif
Brian Easton