PLEASE HELP STITCHING POLYGONS
I am a newby...please help ..this is the scenario
I have a full model divided in 6 parts,, 2 arms, the torso 2 legs and a head...
I align the vertices perfectly using the snaps. When I want to attach the arms to the shoulder of my model, but when I use some animation, the arm doesnt STAY attached to the torso, I tried using merge vertices, but its not working, everything I try to animate, the arm moves idependently of the body, its a basic thing please helpme.
how can I attach the parts and animate without losing the connection.