Trying the NextGen Version of a Gallery Post
Now you’re ready to add your new gallery to any post or page on your site. Once you get to a new post or page, click on the NextGen Gallery icon (shown here at the top-right of all the options, one picture stacked on top of another). This will open a small options box, and you can select your gallery from the dropdown box, as well as choosing how you want your images to be displayed.