go to www.zoto.com and sign up for a free account. It is much better than photobucket. When you click on the picture you uploaded click other sizes and then copy the URL of the one you want. It is MUCH easier that way. When you copy and paste the url in here, put [img] before it and [/img] after it. It should look like this (without the *)
[img*]www.whateverurl.com[/img]