Okay, now that I've actually figured this out (can you tell how much I use the IMG tags here?):
From now on, please put your images in thumbnails.
Imageshack does thumbnails with the ".th" before the image extension in the file name (as far as I can tell). But all you do is put the full-size image URL in the URL tag, and the thumbnail URL between the IMG tags, and you're good to go. This will help cut down on load times on pages.