Has something new changed in sup in the last few days?  It seems that any 
request for a "mirror" collection set fails with:

SUP 8.26 (4.3 BSD) for file ./sup-mirror at Apr 23 19:01:07
SUP Upgrade of mirror-arch-mac68k at Fri Apr 23 19:01:08 1999
SUP Fileserver 8.13 (4.3 BSD) 24831 on sup.NetBSD.ORG at 19:01:08
SUP: Invalid release arch-mac68k for collection mirror
SUP: Upgrade of mirror-arch-mac68k aborted at Apr 23 19:01:09 1999

I made the hostbase change to "/ftp/pub" as suggested and that works fine 
for the "current" collection sets and did work for the "mirror" 
collection sets until a few days ago.

Also, does it make any sense to break the packages system down into a 
couple more sup collection sets?  Right now there's no way (that I can 
see) to just get the binaries for any one port without getting all 
binaries for all ports including the distfiles.

thanks,
-bob