There are two methods that have varying chances of success.
Method One:
1) You can use your domain's server IP address, plus your username like this:
http://xxx.xxx.xxx.xx/~your_username
For instance, if the IP address for your server is 123.123.123.12 and your username was george, you
can view your site using:
http://123.123.123.12/~george/
Method Two:
Open up your hosts file in your local computer. It is usually located in
c:winntsystem32driversetchosts.
Add two entries to your hosts file like this:
xxx.xxx.xxx.xx domain.com 
and
xxx.xxx.xxx.xx www.domain.com
Where the xxx.xxx.xxx.xx is your server's IP address.