How do you make them non-clickable?

You have to remove the HTML that embeds a link. A Photobucket HTML code contains two sections. The first is the part that makes the image clickable, and starts with 

The only part of the HTML you actually need to put an image in a listing starts with 

So if you delete everything in the code before that, the image won't be clickable. 

Or, you can type something like

into the HTML section of a template, and just replace the X's with the direct link (URL) of the image, making sure to keep them within the quotation marks.