Everyone,

 

Thank you for all your help.  There was some good stuff in there.  But ultimately I followed this web site:  http://allyourtech.com/content/articles/25_11_2005_setting_up_wildcard_subdomains_on_apache.php

 

This is giving me what I want, minus the environmental variable.  Now that I think about it I should be able to pull out the entered subdomain using PHP and will use that to customize the content.

 

Thanks for all your help.

 

Aaron