There are several mirrors with KDE 3.2 for debian unstable(
## Mirror 2: ##
deb http://kde.rb-hosting.de/~jens/kde/debian ./
## Mirror 1: ##
#deb http://oberlin.cems.umn.edu/kdecvs/debian ./
and
#deb http://people.debian.org/~ccheney/kde-3.1.95/ ./ )
So I added the last and typed apt-get istall kdebase kdelibs and arts.
But it says it cannot find the libraries.So I added the unstable repository and typed the same and it began to install but it installed kde 3.1.5 And now if I type apt-get install kdebase=4:3.1.95-1 kdelibs=4:3.1.95-1 arts=4:3.1.95-1 it tells me that:
The following packages have unmet dependencies:
kdebase: Depends: kappfinder (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kate (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kcontrol (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kdebase-bin (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kdebase-data (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kdebase-kio-plugins (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kdeprint (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kdesktop (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: kfind (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
Depends: khelpcenter (>= 4:3.1.95-1) but 4:3.1.5-1 is to be installed
.....

And so on.How can I now install kde 3.2 ???
thanks to all

I had to modify my sources.lst to only have the repository for KDE 3.2 nothing else. I just made a copy, ie. sources.list.old of my original sources.list and that was it.