is your photobucket set to randomize file names?
go to PB, click on the upload button, on the upper right is "customize your upload options", click on that. Under privacy options (at the bottom) make sure "Scramble my filenames to make my links hard to guess" is not checked. Also under "resize my photo to" make sure the second number is higher than 990. Then you'll have to upload your layout to PB.