All you have to do is while in your Photobucket album, find the picture that you want, and below that you will see some rows with different codes in each. Click in the field to the right of "img code" and it will automatically copy it for you. Then, just paste that code in the body of a message and hit preview, if it shows a picture, you're golden!

"Was not able to check your pictures encountered an error." - You mean on my PB account??? It's not open for public viewing.