> 1. fetch the initial pkgsrc.tar.gz for a given branch ?
> I know I can get ftp://ftp.netbsd.org/pub/NetBSD/packages/pkgsrc.tar.gz.
> But is there any official pkgsrc-BRANCH.tar.gz to be fetch (rather than
> pkgsrc and then "cvs up -rBRANCH") ?

I think you can use [1] as the initial branch tarball of pkgsrc and [2] as
the _updated_ branch tarball for the same branch:

[1]: ftp://ftp.netbsd.org/pub/pkgsrc/2005Q1/pkgsrc-2005Q1.tar.gz
[2]: ftp://ftp.netbsd.org/pub/pkgsrc/2005Q1/pkgsrc.tar.gz

-- 
-jpeg.