I'm trying to setup multisite to run a network of sites with different domains. I got the network installed and am almost sure that I configured the domain for the first (test) sub-directory site properly, using the WordPress MU Domain Mapping plugin, but when I try to assign a theme to it from the admin panel, it does not show up when I try to view the site directly. I activated the theme from the admin dashboard>themes, and when I accessed the dashboard for the sub-directory site, the theme is there also, and I can add content and manipulate it all I want. But, when I visit the site by typing in the url or view from WP, I was first seeing my web host's default page for for that domain. I removed the default.html file and now the default is just the index files in the folder. Both 'www.site/sub-directory_site' and 'www.sub-directory_site.com' show the same default info, not the wordpress theme that I assigned. I found it interesting that there are no WP files are in the folder for the subdomain_site. I'm not sure if that is how it should be or not.
Are there certain WP files that I need to put into the subdomain_site folder for it to work (I am on shared hosting), or could this be a configuration issue that I may have overlooked, and if so, what do you think that may be?
Thanks in advance for the help!