I hope I'm not being too ignorant, but after reading the man page and 
checking on the net, I haven't been able to figure out what I'm doing wrong.

When I try to upgrade pkgsrc via sup, I get the following error:

Tarragon: {7} sup -v /etc/ports-supfile
SUP 8.26 (4.3 BSD) for file /etc/ports-supfile at Mar 13 14:13:14
SUP Upgrade of release-2-0-pkgsrc at Sun Mar 13 14:13:31 2005
SUP Fileserver 8.13 (4.3 BSD) 13874 on sup.NetBSD.org at 14:13:31
SUP: Invalid release pkgsrc for collection release-2-0
SUP: Upgrade of release-2-0-pkgsrc aborted at Mar 13 14:13:31 2005

My sup file (based on the example) is:

#       $NetBSD: sup.netbsd.org,v 1.6 2003/07/26 20:17:32 salo Exp $
#
# Example supfile for sup.NetBSD.org.
#

#release-2-0 release=allsrc host=sup.NetBSD.org hostbase=/ftp/pub \
#base=/usr prefix=/usr backup use-rel-suffix compress

#release-2-0 release=doc host=sup.NetBSD.org hostbase=/ftp/pub \
#base=/usr prefix=/usr backup use-rel-suffix compress

release-2-0 release=pkgsrc host=sup.NetBSD.org hostbase=/ftp/pub \
base=/usr prefix=/usr backup use-rel-suffix compress delete

#release-2-0 release=xsrc host=sup.NetBSD.org hostbase=/ftp/pub \
#base=/usr prefix=/usr backup use-rel-suffix compress

I'm on NetBSD 2.0, on an i386.

Thanks!
-- Tracy Nelson