Clickable images in slideshow?

I saw your note on how to make this plugin work by clicking an image, which is great.

I have a slideshow on a homepage with 4 images… and I would like a visitor to click the image and have the info pop up appear. I added the url of the image to the title of the popup per your directions, but when you click on the image, you get a 404.

How can I make the images clickable to the popups? Is there a url I can attach to the image (vs. the shortcode) to make it work?

Thanks!

http://ww.wp.xz.cn/plugins/infopopup/