Your website was actually completely obliterated by a hacking crew; your joomla install is not even present on here.
This leads me to believe they have cracked your password, unless the exploit Skizzerz is talking about allows all files to be completely erased and replaced from scratch.
I'm able to unsuspend this, but I would -heavily- recommend changing passwords as soon as is humanly possible to avoid further compromises to your account.
Edit: I should also note I've already removed the offending hack files (the shell, the background logo, and the replacement warez-linking index.html), so it's unfortunately pretty bare. The database -may- be intact, but I'd look through it first to make sure.