Perhaps we should start over.  I am hosting a website so I followed the guide at 
http://wiki.amahi.org/index.php/Hosting_a_website.  My domain name is registered with zoneedit and I use their DNS servers. I have setup a web forward to forward my domain (example: 
http://www.mydomain.ca) to username.yourhda.com/index.php.  Everything appears to work except that the address bar of the browser shows 
http://webtrees/index.php and not 
http://www.mydomain.ca like it should.  This is how I have interpreted the tutorial on hosting a website.  I swear that once I figure this out I will write the tutorial.  In the meantime where am I going wrong?
Second question - when I reload the apache2 service after making a change to one of the .conf files I get the following:  Apache2: Could not reliably determine the server's fully qualified domain name, using 127.0.1.1 for Servername.  And then two warnings that are both the same: (date time) NameVirtualHost *:80 has no VirtualHosts.  Does this mean that there is a problem that needs to be corrected?
Finally, what would happen if I were to move all of the VirtualHost data for webtrees from the hda 100x-webtrees.conf file and place it in the actual httpd.conf file for apache2 with only the a single ServerAlias of 
www.mydomain.ca.  Would that work and ensure that my domain name appeared in the browser address bar?