problems updating from sarge

Hi,

I finally ditched gentoo yesterday, and installed debian in the time it 
would have taken to fix the problems and compile the right packages for 
my system.  Hmmmm, nothing new here I suppose.

Anyway, then I remembered about demudi.  It looks like the website is 
down, but I can still access the repository and mirrors.  I found:

http://www.mirror.ac.uk/mirror/www.agnula.org/1.2/1.2.0/README.FAQ

which tells me in section 8 that I can upgrade my sarge distribution to 
include demudi, but when I follow the directions, I get errors.

# cat /etc/apt/sources.list
deb http://mirror.direct.ca/linux/debian/ testing main contrib non-free
deb-src http://mirror.direct.ca/linux/debian/ testing main contrib non-free
deb http://security.debian.org/ testing/updates main contrib non-free
deb ftp://ftp.nerim.net/debian-marillat/ testing main
deb http://apt.agnula.org/demudi testing main local extra

# apt-get install demudi-install demudi-base
Reading Package Lists... Done
Building Dependency Tree... Done
Package demudi-install is not available, but is referred to by another 
package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package demudi-install has no installation candidate

(and I get a similar error when I try just demudi-base).  Is this a 
problem? I am able to do `apt-get install demudi' and also grab a 
kernel.  As a little nitpick, the next step could be clearer too, and say:

# apt-get install alsa-modules-2.4.25-1-multimedia-<Type>

instead of

# apt-get install alsa-modules-2.4.25-1-multimedia-

(although it should be obvious, I still messed up).

Finally, I don't have the cfagent-demudi or upgrade-demudi scripts on my 
system.  I do have demudi-cfagent and demudi-upgrade.  demudi-cfagent 
seems to run fine, but when I try to run demudi-upgrade, it says:

/usr/sbin/demudi-upgrade: line 16: debconf-get-selections: command not found

and debconf-get-selections doesn't seem to be a package I can install (I 
do have debconf-set-selections on my system).

Sooooooooooo ... what should I do?  I would be okay with blowing 
everything away and restarting from the 1.2.0 CD, if that's going to fix 
things.  As far as I understand, demudi is just some extra specially 
maintained packages on top of debian testing.  Is it a problem if I use 
a current testing?  I notice

http://snapshot.debian.net/archive/2004/07/14/debian/ testing main 
contrib non-free

is meant to be in /etc/apt/sources.list in section 9, whereas I have a 
current mirror specified.

Cheers,
Chris