The main issue is that this version uses the old PEAR repositories to manage upgrades, and those are no longer available.
Without those repositories, what options do I have to go to 184.108.40.206 and then up the chain to 1.9?
You could try downloading the latest version of Magento 1.9 manually (zip/tar.gz) and then copying over the top of your installation. This is definitely something I would do in a development environment as there are going to be a number of issues that you'll need to resolve.
Here's an official upgrade guide from Magento which should be useful: http://devdocs.magento.com/guides/m1x/install/installing_upgrade_details.html