In photobucket, when you are in your gallery, underneath each image there are selections of four different style links (strings of words 'n shit like you posted) the one you are wanting to use is the bottom one, called IMG code. The one you used is an HTML code, won't work on this forum.
All you need to do is copy that IMG code string, and post it here in the reply box, you don't need to add anything to it at all.