Gallery with include not working properly

I’m using gallery with include on this post: https://www.whetstone.wesley.edu/2013/02/17/wesley-mens-basketball-on-a-roll/ . The post has some small images that I do not want included in the gallery. The include works on the post page, but when I click on one of the images to see the larger image (https://www.whetstone.wesley.edu/2013/02/17/wesley-mens-basketball-on-a-roll/basketball1_800w_533h/), every image that was attached to that post — even some a student uploaded accidentally — shows up. Is there a way to get only the 7 images I want in the gallery to show on that page?

I also tried using exclude to exclude the ones I don’t want. The result was the same.

Thanks for any help you can give me!