NameVirtualHost *:80
<VirtualHost *:80>
  ServerName www.test.com
  DocumentRoot /path/to/docroot
  <Directory /path/to/docroot>
    # some options and stuff defined in here...
  </Directory>
  Alias /user/ /path/to/user/
  <Directory /path/to/user>
    AllowOverride None
    # Some options... modify to suit your needs...
    Options SymLinksIfOwnerMatch Indexes
    Order allow,deny
    Allow from all
  </Directory>
</VirtualHost>