I'm not sure how long it will last and whether PB will get wise to this loophole and block it later, but currently, if you add
~original into the photobucket code that you paste into a forum thread to display a picture, it will show the picture unblocked.
You need to insert
~original after the bit that says
.jpg and before the bit that says
[/IMG]
So in other words it should look like this
.jpg~original
[/IMG]
If you go and edit your pictures in your posts to add this extra bit of code the images will display again
