Question : wordpress theme previewer?

Hello,
can i find a customizable wordpress  script or a plugin for realizing a wordpress theme previewer like this site:
http://topwpthemes.com

thank you.

Answer : wordpress theme previewer?

http://blog.alexgirard.com/2008/01/18/wordpress-theme-viewer-plugin/
http://blog.alexgirard.com/wp-content/uploads/2008/01/theme-preview.zip