Ok.

From what I can see, this site has two methods for sharing photos that a user uploads. Online sharing and Collections.

Online sharing emails a link to someone, they click, they view. Collections creates a web address for distribution.

In both cases, I was able to right-click/save picture as and capture the viewed image. However, I was not able to download the much larger 'actual image' that I uploaded, only the image as viewed.

In neither case was I able to obtain a postable image link.

Here is a test collection if you'd like test. The originals, as uploaded, are 720*540. The largest image size I was able to obtain above was 600*400