I BOUGHT A SAFETY 1ST ALPHA OMEGA ALL IN ONE CAR SEAT MODEL #22152-CMN MANUFACTURED ON 12-23-2006. HOWEVER, ON 5-11-2007. WHEN I INSTALLED THE CAR SEAT, THE HARNESS STRAP GUIDES CAME LOOSE. I PUSHED THEM BACK IN AND THOUGHT THEY WOULD STAY SNAPPED IN PLACE. ON 5-16-2007 THE HARNESS STRAP GUIDES CAME A LOOSE FROM THE BACK OF THE CAR SEA,T AND ONE WAS DIGGING INTO THE SIDE OF MY 1 YEAR OLD SON'S NECK AND SCRATCHED HIM ON THE NECK.*AK