photogallery issues

I've recently started having a problem with my photogalleries where
instead of the gallery displaying correctly, a complete duplicate of
whatever page the gallery is on is in its place with erroneous text
links where the photogallery should be. Okay, didn't explain that very
well, but here's a link to one of the pages with the problem so you can
see what I'm talking about:

http://www.thehallway.net/jetsetting10.htm

Scroll down the page to see the full extent of the problem. All of the
pages in my site with photogalleries suddenly have this problem but none
of the other pages do. I have been creating, managing, and publishing my
site in FrontPage 2002 for a couple of years, which includes multiple
photogalleries, but have never before experienced this particular
problem. Ever since I did my monthly update on Friday, including adding
a new photogallery, all of a sudden _all_ of my photogalleries are out
of whack, even the ones on pages I never even opened/changed in this
last update and that had been working just fine until then.

Since then, I've republished my entire site, had my webhost check it
over, had him check all of his Server Extension settings, had him clear
out my web folder so I could start with a blank slate and republish my
site (I'm really good friends with my webhost), and about ten million
other things I wouldn't want to bore you with.

Any help anyone could provide would be most appreciated and I apologize
in advance if this has been covered; I did spend some time on Google
Groups trying to find a solution. Honest!

--
Brittney Hall