On really old Ubuntu 6.06 - How to upgrade

I'm on an old Ubuntu version (Ubuntu 6.06.2 LTS Server) which isn't really supported any more. So the automatic updates don't work. I have ISPConfig installed to manage a few web sites.

What's the best course of action? I'd like to upgrade to something current, but I can't figure out how to go about doing this, given that the apt-get scripts don't really work any longer.


Backing up your data and doing a fresh install would be by far the easiest option, I'm afraid