Ya did good!!! Usually but not always, if you click on the picture you want that's when the IMG code will come up and most of the time it's either at the side of the picture or below it.
Here's what you do....just go to photobucket or where ever it is that you want to get a picture and coping the IMG link. Then paste it here where you type. That should do it!! Give it a try and let me know if you need some help.