First of all thanks to John (Eggbert) for this post, in which he provided a link to a Google Chrome extension which enables you to view the broken links to Photobucket images in the Google Chrome browser. The author has now produced an add-on for the Firefox browser. Here are the two links:

Photobucket Hotlink Fix for Google Chrome

Photobucket Hotlink Fix for Firefox

These now make all the previously broken "how to" guides and build diaries on this and other forums visible again - but personally I will continue to give a two-fingered salute to Photobucket by no longer using their hosting service .....