Hi Paul,
Error 404 from what I understand is the computer cant find a" correct page? " (google it to find out correct term). So I would uninstall the HPP-22 program you have and and try reloading the latest version. You can`t install updates over the old version.
Sorry if I am teaching you to suck eggs, but I have made this mistake.
I have Aurora 9, and Eclipse 7 with module and both OK
Mike