virtual site installed at GoDaddy, but does not change theme

I set up the virtual site following the book page directions.

I created a page with alias vsitename/pagetitle where vsitename is the path I entered in the Condition vsitename/*

I changed the theme for the vsitename virtual site but the page is displaying with the site theme, not the virtual site theme

I am using GoDaddy, is that a problem?