A member of the ADV Rider forum posted this over the weekend. It seems to work just fine. Fixes the old broken links - don't think it does anything for the ability to use PB going forward.
Hey guys,
I wrote a Google Chrome browser extension that, once installed, will make all broken Photobucket images on any webpage visible again. To install it, if you're using Google Chrome, just go to this link, click Add to Chrome, and you're good to go! From then on, any page you visit with broken Photobucket images will show up as they did before Photobucket nuked them. You don't click on anything, or do anything else, to get the pictures to be fixed. It happens automatically. They will not be fixed for anyone else -- they will just show up as fixed for people using the browser extension.
Chrome: https://chrome.google.com/webstore/detail/photobucket-fixer/ogipgokcopooepeipngiikdkpmcpkaon
Firefox: https://addons.mozilla.org/en-US/firefox/addon/photobucket-fixer/
In case anyone wants to look at the code behind the extension, you can look at it here: https://github.com/TheAtomicGoose/pbfix
Thanks for reading, and I hope this helps!
Jesse