postgres rpm 403 forbidden

Hi:

  Assuming this is the right channel, I would like to get advice on obtaining the postgres92 rpm on RHEL5 for installation.

  Following the blog on https://people.planetpostgresql.org/devrim/, I visited the https://yum.postgresql.org/repopackages.php#pg92, found the rpm: https://download.postgresql.org/pub/repos/yum/9.2/redhat/rhel-5-x86_64/pgdg-redhat92-9.2-9.noarch.rpm, downloaded it, then added it on RHEL5 OS via command:

sudo rpm -ivh pgdg-redhat92-9.2-9.noarch.rpm
 Preparing...                ########################################### [100%]

1:pgdg-redhat92          ########################################### [100%]

But then, when check repolist via "yum repolist" I got the following error message:

https://download.postgresql.org/pub/repos/yum/9.2/redhat/rhel-2012.03-x86_64/repodata/repomd.xml: [Errno 14] PYCURL ERROR 22 - "The requested URL returned error: 403 Forbidden"
Retrying current mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: pgdg92. Please verify its path and try again

I understand this is a much deprecated EOL version, but still appreciate for any advice. Can I find any source code and manually compile on RHEL5?

Thank you!

Xiaokun