Setup issue

Hello,

I just completed the ctivation of the MU fonctionalities on my existing wordpress installation at http://www.liberezmoi.com

Instructions I followed are here:
http://codex.ww.wp.xz.cn/Create_A_Network

The original site is intact but the homepage of the new site displays as:
__________________________________________
Index of /en

Parent Directory
cgi-bin/

___________________________________________

Please help me figure out whats wrong

Thanks