I've solved one of my problems and resolved the other.

1.  I set up my own NetBSDswap functions in xosview so that they do 
nothing and don't even bother to try and report swap usage.  The rest 
of the display works this way; I can get the swap utilization from other
sources.  I'm going to look at this more closely after I get the mvend
(below) problems worked out.

2.  The problem with mvend is a little hairier.  The author blames the
Perl INet functions for the problems I'm having.  I somehow doubt it,
but I haven't spent enough with the program to make any sense out of the
indicators.

I am going to keep on playing with the shopping cart app in hopes of
figuring out where the problem is.  My suspicion is that the server is
getting into some kind of a deadlock situation; a coredump and gdb ought
to help something there.

A new nit:

Has anyone played with the FreeBSD version of the RealAudio player?  If
it should work, how should I create the devices I need (I assume in
/emul/FreeBSD/dev) to get the software to work.  RAPlayer uses
/dev/mixer (which I think is there) and /dev/dsp (which wasn't).  I
linked it to /dev/audio, but that didn't work.

Suggestions?  The new OSS Audio stuff should work (or at least work
better) for FreeBSD audio emulation.

Of course, it is entirely possible I've missed some really basic step
again.
-- 
Dave Burgess                   Network Engineer - Nebraska On-Ramp, Inc.
*bsd FAQ Maintainer / SysAdmin for the NetBSD system in my spare bedroom
"Just because something is stupid doesn't mean there isn't someone that 
doesn't want to do it...."