I want to create a live demo site like http://www.elegantthemes.com/gallery/ that show themes so when I click on the theme screenshot it takes me to the live theme preview.
I tried two plugins themebrowser and wordpress-theme-showcase they are showing the themes in a list and I can click the theme to view, but when I'm trying to go to any page inside the preview theme it takes me to the original theme that already installed, so also I want to be able to browse the demo theme pages and posts like if it is activated.
Edit: From the source code of wordpress-theme-showcase plugin the Theme Preview URI: php?preview_theme=WordPress%20Default and that's ok for he home page of the new theme, but if I want to go to some page it redirects me to the home page of the installed theme. So I tried to add &p=1 (post url) to the end of the Theme Preview URI above and it works. The question now is how I can append this url to all the links in the preview page