We received a correction this morning from astute MotoSport Outlet Bench Racing Ammo reader named Rich Taylor. Rich, a former top privateer racer and a factory test rider, also played the role of Rowdy Sparks in the summer blockbuster Supercross: The Movie. He mentioned that it was actually him on the #7 bike, riding in the role of Rowdy Sparks.
So here's the correction: most recently, #7 was worn by Rowdy Sparks in 2004.
Sorry for any confusion this may have caused.