Not exactly a detailed repair guide but this site has helped me with various repairs, you do need to surf around in the site and you will find stringer and transom repair suggestions
www.rotdoctor.com
if that is not the exact address then do a search with rot doctor or rotdoctor. Mark
P.S. I just reveiwed the site and there are some good directions in the fiberglass boat section and by the way I Emailed that guy with some questions and he Emailed me right back several times and really helped me. I ended up using a few of his products and found them to be superior to the West Marine stuff.
[ June 05, 2002, 03:35 PM: Message edited by: markdpm ]