Hi Paul;
You are right about the manual pages.
I had to Download it to this computer, ( I have all of these files on my machine at home and my download to this machine came by a slow boat through China.)
so yes --
pin 1 on the sio board to pin 5 of the rs-232
2 " 8 "
3 " 4 " ( and 20, I think)
4 or 10 " 7 "
7 " 2 "
8 " 3 "
10 or 4 " 7 "
What I did to first try it out and make sure I was right ,, was to use wirewrap wire and just wrap the wire onto the 2-sio board connection and soldered it to the rs-232 connection on the other side to make sure it works. Before pinning the wire on the 2-sio side. Then bring up Hyperterminal and see IF it works, if not then make modifications. (by slipping wires on and off of the pins on the 2-sio) Hyperterminal will let you know when it is happy with the connection.
THANKS Marty