1. Right click on the image and then Select "Copy Image Location"
2. Click IMG button(it's above the post box)
3. Paste the image's url after the after the images url and it should work :)
ok, i realized that the IMG has to be lower cased. in photobucket it has the IMG links in the beginning and the end for people that are posting in forums, but on here, it has to be lowercased not uppercased, weird.