How to change connector-url from fqdn to relative-path?

Hi!

I am facing the following problem right now :
FCKeditor uses the fqdn to access the connector.php :
http://www.easymemberpro.com/testing/1/ ... nector.php

as you will see clicking on this link, this is not allowed by the Apache-security mods on this host.

If you use
http://www.easymemberpro.com/testing/1/ ... nector.php

you will see that using the relative path, it will work as expected.

So the question is now : how can I change the way FCKeditor tries to open the connector.php ? I definitely need to use the relative path for this..

Any help will be greatly aprreciated ! Thanks a lot in advance ...

Best regards,
Oliver