I think that I provided the original link, in this thread: Tune Req: Bert Jansch's Blackwaterside?.  The site seems to have disappeared since then, and I haven't managed to find it elsewhere.  Always a problem, given the ephemeral nature of so much on the web; we'll just have to hope that it shows up again somewhere, as the tab appears to have been quite useful, though the lyric transcriptions were rather poor.