World Cup, Adobe and upgrading from Etch to Lenny

[Bill <bill3@uniserve.com>]

Hi folks,

I'm trying to steam World Cup games, which I've been doing fine 
until now. But CBC our national broadcaster has switched streaming
systems and now requires that I upgrade to Flash Player 10.1 on 
Etch. I don't think it's possible. Leave it to a non-free package
to screw up my system.

I'm not ready to upgrade this system yet to Lenny, so I'd like 
to keep it in Etch if possible. I can't seem to install Flash
because of unmet dependencies. 

I've tried forcing (-f) and using backports.org with apt but no joy. 
I wonder if someone can tell me if it's possible to install Flash
Player 10 on Etch? Basically, all attempts give me an output similar
to this:

# apt-get -t backports.org install libpango1.0-0
Reading package lists... Done
Building dependency tree... Done
libpango1.0-0 is already the newest version.
You might want to run ‘apt-get -f install’ to correct these:
The following packages have unmet dependencies.
adobe-flashplugin: 
Depends: libatk1.0-0 (>= 1.20.0) but 1.12.4-3 is to be installed
Depends: libc6 (>= 2.4) but 2.3.6.ds1-13etch10+b1 is to be installed
Depends: libcairo2 (>= 1.6.0) but 1.2.4-4.1+etch1 is to be installed
Depends: libfreetype6 (>= 2.3.5) but 2.2.1-5+etch4 is to be installed
Depends: libgtk2.0-0 (>= 2.12.0) but 2.8.20-7 is to be installed
Depends: libpango1.0-0 (>= 1.20.5) but 1.14.8-5+etch1 is to be installed
E: Unmet dependencies. Try ‘apt-get -f install’ with no packages (or
specify a solution).

Usually apt is one of my favourite tools. But not today.
Any ideas? Is there a way to back out of this and start again?
To get Flash 10 installed on Etch?

        b.