If I understand your request correctly, you're saying that you have a hyperlink to an image that's part of your attributes. When you view the attributes, the hyperlink just displays as a hyperlink, but you want to see the actual image. What you need to do is add an image to the optional Popup Media of a popup.
When configuring the popup, look to the Popup Media section and add an image. Here you can specify the URL to an image. I noticed on Flickr that any photos displayed outside of flickr must provide a link back to Flickr. This requirement actually made it difficult for me to obtain a link to the actual photo (not the photo description page), which is what you need.
This is from the Flickr website and provided as the reason why they no longer provide direct links to photo images...
[INDENT]Do link back to Flickr when you post your Flickr content elsewhere.
Flickr makes it possible to post content hosted on Flickr to other web sites. However, pages on other web sites that display content hosted on flickr.com must provide a link from each photo or video back to its page on Flickr. This provides a way to get more information about the content and the photographer.[/INDENT]
I was able to find an explicit link to a photo by viewing the HTML code and copying the image src. Maybe there are other ways to do this too, I don't know.
Hope this helps,
Mike
