find / -name httpd.conf
sudo cp -R /var/www/ /home/username/
sudo chown -R username:username /home/username/www/
sudo rm -r /var/www/
sudo ln -s /home/username/www /var/www
sudo nano /etc/apache2/sites-enabled/default
sudo /etc/init.d/apache2 restart
Yes, but you should have root access, so just fire up putty ( google it ) and connect to your server like a boss.
I can't help you further if you can't connect using SSH.
Perhaps someone else can take it from here.
EDIT:
Checked your screenshot.
You have SSH, good. Now just do what I said.
If ISP CONFIG crashes due to what you're going to do, you'll have killed two birds with one stone!
root@vps-176-31-91-37:~# ls -l /etc/apache2/sites-enabled/
total 0
lrwxrwxrwx 1 root root 39 Jun 5 17:58 000-apps.vhost -> /etc/apache2/sites-available/apps.vhost
lrwxrwxrwx 1 root root 26 Jun 5 17:18 000-default -> ../sites-available/default
lrwxrwxrwx 1 root root 43 Jun 5 17:58 000-ispconfig.conf -> /etc/apache2/sites-available/ispconfig.conf
lrwxrwxrwx 1 root root 44 Jun 5 17:59 000-ispconfig.vhost -> /etc/apache2/sites-available/ispconfig.vhost
lrwxrwxrwx 1 root root 47 Jun 5 18:02 100-176.31.91.37.vhost -> /etc/apache2/sites-available/176.31.91.37.vhost
lrwxrwxrwx 1 root root 45 Jun 5 20:38 100-conrado.pl.vhost -> /etc/apache2/sites-available/conrado.pl.vhost
lrwxrwxrwx 1 root root 47 Jun 5 20:43 100-conradock.pl.vhost -> /etc/apache2/sites-available/conradock.pl.vhost
lrwxrwxrwx 1 root root 47 Jun 5 20:48 100-discomuza****.vhost -> /etc/apache2/sites-available/discomuza****.vhost
lrwxrwxrwx 1 root root 44 Jun 5 20:59 100-games.net.vhost -> /etc/apache2/sites-available/games.net.vhost
lrwxrwxrwx 1 root root 43 Jun 5 19:19 100-mnhnb****.vhost -> /etc/apache2/sites-available/mnhnb****.vhost
lrwxrwxrwx 1 root root 44 Jun 5 20:18 100-mywiiu.pl.vhost -> /etc/apache2/sites-available/mywiiu.pl.vhost
lrwxrwxrwx 1 root root 44 Jun 5 21:08 100-qames.net.vhost -> /etc/apache2/sites-available/qames.net.vhost
lrwxrwxrwx 1 root root 48 Jun 5 19:16 100-testujemy2****.vhost -> /etc/apache2/sites-available/testujemy2****.vhost
root@vps-176-31-91-37:~#