Can not access the translated versions of the website while I can see them in the database

Hello,

I have installed this plug in but when I am trying to access the translated page I am getting a message like "The virtual directory" does not allow browsing...
What are the requisites necessary to install the plugin anyway?
Do I need to set special permissions and if yes where? Do i need to create virtual or real directories for each language I wish to translate?
I am running this on a Windows 2003 server with IIS.

Thank you for the answers.

Julian Rosengren