Okay Jan,
Log/Sign into photobucket
Go to the albumn that you want
Underneath the image you want to share, there is a blue bar, with Share Edit Delete Move written on it.
Under the bar it says IMG Code and to the right is a little window that has writing in it.
Click on the writing in the window/box and it will be highlighted in blue.
Right click on the blue text and then select 'copy' from the menu
Go back to your post and Right click on the post.
Click on the 'Paste' option
That will transfere the IMG code into your post. You then need to submit as you normally would do
Ton