NextGen Gallery Inserts Itself Into All Posts

If you scroll down my homepage, Laurelight.com, you’ll see that my most recent NextGen Gallery inserts itself into all my previous post summaries. If you click on any of the posts, you’ll see NG Gallery has also inserted itself into each post.

I’ve checked on Firefox 2.0.0.16 and Explorer 7.0. I’ve tried the Classic and Default themes and each one comes up with the same problem. Will upgrade to WP 2.6 tomorrow, but I’m guessing that won’t help. Have searched the forums, but I’m unsure which search terms to use.

Thanks for any help you can offer.