This might help. The ROD goes into the die in the middle of this picture.
http://castboolits.gunloads.com/imag...1a71a46217.jpg
Simply unscrew the top part and insert the punch from the top, then screw back in the top part and screw the die assembly on the press and adjust the height.
EDIT: That 1 die in the middle has more than 1 function and that may confuse folks that don't have the die set right in front of them. That die is also used to core seat, and that uses the rod second from the end on the right. It's up to the user to use which ever punch they want.