I'm afraid this is the first I've heard of a "html)" flavoured Blosxom. Try dropping the "/+html)" bit from the end of the URL.
This release can emulate a Sun 2/120 running NetBSD, a Sun 2/120 running NetBSD, a Sun 3/150 running NetBSD, and a SPARCstation 2 running NetBSD or SunOS 4.1.4 (aka Solaris 1.1.2).''
The interesting part here is the Sun 3 support - machines of that class run on Motorola m68k CPUs, and so far not many emulators are available for that machine, esp. ones that can run NetBSD. (I know about UAE, but I haven't heared reports of it running NetBSD. Correct me if I'm wrong!)