After installation problem

After installation, I logged in but all I see is a listing of an “Index /blog” with a listing of all the files in my blog folder.

[ ] index.php 26-May-2008 02:33 1k
[TXT] license.txt 06-Dec-2008 13:47 15k
[TXT] readme.html 28-Dec-2009 23:21 7k
[DIR] wp-admin/ 08-Jan-2010 05:03 –
[ ] wp-app.php 25-Oct-2009 16:32 39k

etc.

Anyone can help? This is my first time installing WordPress.