FYI, on another forum (non sports) I visit sometimes, they're also suddenly getting the same image shack domain violation rejection graphic. Hopefully WildBill can convince them to rescind the ban based on assurances that anything transcending their apparently newly created (or enforced) TOS will be promptly removed (I've got some stuff farmed there as well). However, it might be a good idea to migrate some of the files over to tinypic.. although they also censor with somewhat of a heavy hand.
Beyond that, within the last year, I've seen a number of reasonably reliable free more content-flexible hosts disappear - so short of starting your own website to store this stuff if a host has no problem with the content, it's getting harder and harder to farm any jpgs and gifs which they allow you to hot-link and are not mostly-vanilla. Sux