restoring ver 7.2 database

I've really done it this time. I upgraded to Linux Mandrake 9.1. Now my pgsql
version is 7.3. My database was version 7.2, and postmaster won't start.

I have a copy of the old data (v7.2). Just a `mv /varr/lib/pgsql backuppoint`.
pg_dumpall (from v7.3.2) didn't work, because postmaster wasn't running
(refused to start) .

How can I restore my old data?

install a local version 7.2 somewhere and tell it that the data lie on
backuppoint? In order to do that I need the source files for v7.2, are they
available somwhere?

TIA
andrass
--
Andrass Ziska Davidsen
c960334@student.dtu.dk
DTU-stud.no.: c9603343