I've found some old Queenzone stuff through link but unfortunately none of the old forum topics seem to be archived, only the front pages, like this one: link
Well on the old (and best) forum, when you choose how many day's worth of posts you want to display, you can go up unto the URL and alter it to whatever you want.
I can't quite remember how far back it went, but by setting the amount of days to show to 1000 was certainly allowed you to see as far back as the database goes, which I think was somewhere in the region of 2 years.
I remember Richard Orchard was involved in discussions about including an archive in the new page that goes beyond the already existing one. So maybe all old threads are still there. Would be very nice since there has been exchanged far more Queen-related information than anywhere else on this board. And some funny stuff as well.