mod_rewrite, index.php etc

[eluser]tomcode[/eluser]
It looks like Your pages are all served as error pages, try :

Code:

RewriteEngine On
  RewriteBase /
  RewriteCond %{REQUEST_FILENAME} !-f
  RewriteCond %{REQUEST_FILENAME} !-d
  RewriteRule ^(.*)$ index.php/$1 [L]

without the rest.

Either You'll get a 500 Server error in case ModeRewrite is not present or it shall work.

The used conditions in the if clause work only on some servers.