Firstly, web hosting is a great solution for automatic backups. I am sure there are many programs out there for backing up your files but I don't know that many so have a look on google for that.
For DDoS, I would suggest you put your site behind cloudflare (http://cloudflare.com) and then use...
There may be a add-on script for this around the rival forums, but there is nothing built into the CMS for groups. Groups is a new features, so Uber, REV, Phoenix ect will not have it yet.
It's called an immature none-fit to be owner of a Hosting company who is upset because you have quit his company because he is not fit to be a owner and his spoonfed.
Basically, There should be a category for Roleplay Hotels since there will be a massive increase within the next few days or weeks since PhoenixRP.SWF has been released. People joined my hotel, I asked them how, They said TheHabbos.org, But I was like #100, People search RP and find it like...