So I've got some images I've put in the text part of the game bit (as opposed to using scripts, I just used the {img} thing), and when I play the game in Quest the images show up fine, but when I publish the game to this website they just show up as broken images. Why is this happening and how do I fix it? And in case it's relevant: the pictures are my own art.

By default, Quest will only include files of thiese types:
.jpg;.jpeg;.png;.gif;.js;.wav;.mp3;.htm;.html;.svg

It might be worth while removing non-alphanumeric characters, like spaces and punctuation, from the filenames too.

They're all .PNGs and don't contain any spaces or punctuation.

They're all .PNGs and don't contain any spaces or punctuation.

I haven't messed with the publishing system yet, but it sounds like it isn't packaging or uploading the images for some reason.

Change the extension of the .quest file to .zip, and then open it in Windows Explorer, and you will be able to see if the images are in there or not.