Anti-hacking filter and wordpress

Hi,

My wordpress sites are hosted on a server with an anti-hacking filter. This gives problems with wordpress.
The provider gave me for wordpress 2.5 2 solutions to solve this:

wp-admin/edit-form-advanced.php
line 5:

$messages[1] = sprintf( __( ‘Post updated. Continue editing below or go back.’ ), attribute_escape( stripslashes( “http://”.
$_GET[‘_wp_original_http_referer’] ) ) );

wp-admin/post.php
from line 53:

$location = preg_replace(‘|http%3A%2F%2F|’, ”, $location); $location = preg_replace(‘|http://|’, ”, $location);

(I had also to find the simular lines in page.php and add this there)

For as far I can see, this works for 2.6
But now it is also not possible to directly access the wp-admin (www.domain.com/wp-admin).
So i like to hear what i do have to change here.

I asked my provider what the main problem was so I can send this to you, maybe you can add this in a new version of WP.
My php knowlegde is not good enough to understand, but you surely know what I am talking about:
they advies to configure =http:// in the backend in stead of in the querystring.
I hope this make sense to you and that it is possible to change this lines in the next version of wordpress