Site seems to be dead now. Since some liks to it are still floating around the net, here is some info on how to find logs:
Older archives exist on http://ircbrowse.net/lisp
Links to meme.b9.com logs look something like this:
here, "utime" attribute looks like lisp's "Universal time" timestamp: time since January 1, 1900.
To get year/month/day and unix timestamp from it and generate a link you can use:
(linking directly to messages on ircbrowse using only timestamp attribute is not working for me)
You can also use bash to convert from utime:
date -u --date="@$((3334724700-2208988800))"