Upgraded to 3... can't access pages

I do not have the index_page set. Why would anyone want a URL with index.php stuck right in the middle of it? 

This could be a .htaccess issue. My file:

Code:

# Make sure directory listing is disabled
Options +FollowSymLinks -Indexes
RewriteEngine on

# Send request via index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

RewriteRule ^(.*)$ index.php/$1 [L]

When I do add in the index.php into the URL (manually go to URL address and type http://www.eldermaltreatment.com/index.php/about), the page comes up, but none of the style sheets are linked and the page is left unstyled. 

Thoughts?