Open up photobucket.
Navigate to your album.
you should see a few like this:
Where I circled in red is what you want to highlight.
Right click, copy (or CTRL-C)
Come back to this thread and open a reply box.
Within the message body, right click, paste (or CTRL V)
You should see something like this:
(Without the space after the )
That's all there is to it.
Piece of cake. and should be no worries going forward.