Just had a quick look on Google, and found a Chrome extension that also fixes the problem:
https://chrome.google.com/webstore/d...flicjjgj?hl=en
Only of use if you use Chrome, and, of course, it only fixes it for those who install the extension. I've just tried it myself, and I can now see all embedded Photobucket images across the forum and beyond.
Pauls fix is the better solution, as it will give everyone access to your photos, but if you need to see the photos on a "How to" that hasn't been sorted by the thread owner, then the extension should sort things for you.
Cliff