openoffice debs - how to downgrade from 1.0.3-1.0.2

[Matthew Yee-King <yeeking@no-future.com>]

Hello there

I'm using the debs for openoffice from here:

http://ftp.kulnet.kuleuven.ac.be/pub/mirror/ftp.vpn-junkies.de/openoffice/

and i recently ran apt-get upgrade, and got oo 1.0.3. Problem is now 
openoffice won't open some nasty M$ office  files that it opened 
fine in OO 1.0.2 . (I'm assuming its the upgraded oo thats the problem, 
not the upgraded system). My system is sarge. 

So my question is, how do i downgrade a specific package and keep it 
there on my next apt-get upgrade?

cheers

matthew