Consider yourself lucky. The image you wanted the most, could have been one of the three which expired.
This is why we have Attachments now - so we don't lose important stuff like this, ever again (imagine how much more could have been lost if we didn't get out of Ringo Jihen as early as we did).
Obviously Attachments weren't a feature that was available at the time for you to take advantage of yet, so it's not like you made a "big mistake" or anything - but in the future you might want to get comfortable with the Attach feature, where images are hosted by EMF for forever, instead of hosted by a third party who deletes the images months or years later if you aren't actively paying into their system. EMF Attachments have never expired, and they've never been for paying members only.
You know Tokyo Jihen is a supergroup, when you can't blame most of the members for wanting to pursue other projects.