[Plugin: NextGEN Gallery] Having size problems in my post.

I’m running 2.7 of wordpress.

I have the nextgen gallery on my wordpress installation and I am having a sizing issue. I’ve put a gallery in my post and it is not sizing correctly as you can see.

The CSS for the post is 500 pixels in width.

Please refer to the following URL for reference.

http://www.tammycamp.com/travel/mounu-island-resort-in-tonga

Thanks!