In Photobucket, we you see the thumbnail pics...hover your mouse on the picture(don't click, just point), there should be a box drop down under your pic that you are hovering your mouse over, copy the second line of text named "direct link", then go back to your post and type [img], then paste your link directly behind the bracket, then type this [/img] ... so it should look something like this without the space behind the first [img]:
[img]
http://img.photobucket.com/albums/v345/jwright650/IMG_0220.jpg[/img]
You can post just the link without the [img] tags and it will provide a clickable link, add the [img] tags and it will show your picture when someone views your post.
Here is what happens when you take out the space in that link above:
To add some confusion: the botton link that says "IMG code"....you can copy that link..."but" you have to make the [IMG] and [/IMG] lowercase letters or it won't work in the forum.
Just so you know...[img] tells the forum software that a link to a pic follows, [/img] tells the software that is the end of the picture link(both tags are important to posting a picture)