Did exactly what you recommended: clean install in a new directory. The new tabs are available, unfortunately they don't seem to work. They all say they're succesfull after clicking Save, but the password remains unchanged, forwarder or vacation message aren't set.
I think it's because Bluehost doesn't use X3 theme, but it has a custom developed 'bluehost' theme for Cpanel 11.
Do you have any pointers how I can make the necessary changes to your scripts? I'd love to get it working.