All I see is a directory listing when trying to log into my wordpress blog

I completed the installation of WordPress 3.0 on my company website and it seems to have completed without issue. I got no hangups or error messages and I reached the screen stating that the install was successful. The problem is when I try to go to the blog website now (http://www.central.us/blog) all I receive is the directory listing instead of the blog interface.

If anyone else has run into this issue and could be of assistance it would be greatly appreciated.

Thanks,
Tim