"Louise Cofield" <lcofield(at)box-works(dot)com> writes:
> Now, after shutting the postmaster down, and attempting to restart the
> postmaster, this is the error:
> "The data directory was initialized by PostgreSQL version 7.3, which is
> not compatible with this version 7.1.3."
Sounds like you also have PATH problems: you've got an old version of
the postmaster in your PATH (possibly left over from your OS install).
regards, tom lane