I have just upgraded and created a new site at Site5. I made a terrible mistake, I entered the domain name wrongly. I went on to install a WordPress at the root, obviously it didn't work. I found out and amended the domain name, it is still not working.
I'm now waiting for technical support to come to rescue me!
The multiAdmin is easy to use and each site has it's own NetAdmin interface for everything you need to do with your site.