If you are still looking for rigging help...
If you are still looking for rigging help, and info about Venture 22's, I have bought several items from the following store in Mass. Havencraft is a MacGregor dealer and stocks parts for older boats as well. Among the items I bought was an owners manual for my boat which is a 1972 2-22. Their website address is: www.macgregorparts.com. By the way, I usually use the main halyard to hold the boom up when not sailing by attaching it to the eyelet at the aft end of the mast where the clew of the sail attaches. I've thought of adding another line from the mast head as a dedicated attachment but haven't looked into it any further. As far as the eyelet at the bottom of the mast, if you have the same pivoting mast step that I have, then I don't have a clue either. I do use it though to keep the jib halyard from running up the mast when under way with the sails down. I just run the line through the eyelet and tie a stopper knot. I started doing this after we lost the jib halyard up the mast on a windy day. What a mess! Good luck. Tim Etcheson