The guy in the FUZU ad is the syntrax moderator( I'm pretty sure),at the forum on their website. This is only true if things are the same, if its the same guy that was in the ad several months ago and he is still the same moderator.
If I remember correctly, he said that he had never used steriods and never will. Of course, if he has used steriods in the past, he not admit to it anyway.