Yuna - If it's not working for you, then you might just need to post a link. Maybe you could report the problem?
On a side note: Yay! I manged to figure out how to make thumbnail image links - I've never done that before, here's how to for anyone interested:
[url=Paste the URL to the large image in here][IMG]Paste the URL to thumbnail image in here[/ IMG][/ URL]
Example: [url=http://www.cosplay.com/photo/3411578/][IMG]http://thumb.cosplay.com/283784/3411578.jpg[/ IMG][/ URL]
But don't put spaces in the [/ IMG] or [/ URL] codes like I did, or it won't work. I had to add a space so the codes wouldn't make a link in the instructions.
(How to get thumbnail image URL address: Right click on thumbnail image and go to 'View Image Info', that should give you a pop-up with the image info in it, there you'll find the URL address, usually at the top.)
So.. that gives you a clickable thumbnail which will take you to the larger image, as seen below:
CLICK for larger image