The 1992 show has the shittiest sound quality ever, and I doubt you'll find a non-mp3 version of that show. Although there is a song on it (forget name) but it has the solo part in Forest of October, in it. Kind of cool to hear.
As for the 1995 show, it has pretty good sound quality, a little too far away from the sound source though. Also has "The Apostle In Triumph", fucking wicked song!. It will also be difficult to find that show non-mp3 as well.
Thats basically all you can get. The guy who runs that site, Graveless Soul, is very knowledgable about Opeth bootlegs. And i chatted to him about it, and there are hardly any bootlegs pre-dating 2001, when Opeth made it big. So it kind of sucks unfortuantly.