i then finished joining the neck to the face.

after i did this, i realised i hadn't welded the new vertex's to eachother, so if i moved it would break apart.

i found it easy to find these parts when i used turbosmooth, the vertex's that were not joined produced a line on the head. once the vertex's were welded the line dissapeared to give a smooth finish.

most of these issues accured with the side of the neck and around the edge of the face. as this is where all the new polygons were created.