> You need the 1.12 release to work with with PostgreSQL 9.0. Whether or
> not it is available on a CentOS package is another question, but I don't
> have an answer for this one.
>
you mean, like this?
http://yum.pgrpms.org/9.0/redhat/rhel-5-i386/pgadmin3_90-1.12.1-1.rhel5.i386.rpm
if you installed the yum.repos file appropriate for your version and
architecture, simply run...
# yum install pgadmin3_90
and get the latest.
