If were talking "photoshopped" in the sense that touch-ups are done for ad purposes...then yes, I'm sure they are to an extent, as are 99.9% of pics used for ads...not just in BB, but almost ALL publications.
It's as common a practice asit gets....blemishes, line enhancement, evening out skin tones, wrinkles in clothes, etc, etc.
Lets not take away from what this kid accomplished...the photo's werent photoshopped to fool anyone, or to exaggerate his incredible weight transformation...you're talking about losing over 100 lbs.
Lets keep things in perspective....