I just checked it is working OK now. Start at
http://www.rcmmagazine.com/index.htm...itWReYzW498403 and follow the various headings. For the jig you want Requested articles, then,features, then log in , then scroll down about 15 items to wing jig. There is also another wing jig lower down the list.
Occasionally the site is unavailable probably due to too many people downloading big files. When I try it is 5 or 8 hours ahead of US time and is normally OK then.
There is a fantastic set of articles by David Anderson and he has even allowed a copyright free plan for a 1/3 scale Grumman Lynx model for free download from the site. Again I just checked it is still there.