This is the default user page.
To enable your apache user dir, you have make your home and public_html directory world readable.
( chmod 704 /home/youruser && chmod 704 /home/youruser/public_html )
If you are going to use php, you need to make it executable too.
This is the same command, except you'll user 705 instead of 704.
To disable it, do the same except you'll user 700 now.
You can access your page by going to http://www.insomnia247.nl/~username