Troubles with the images or url insert

Hi all,
I've installed last version (2.1.1) of FCKeditor.
Trying to use the sample01.html it works good except to the functions in subject.
In fact, clicking on the relative icon it appears the dialog window. Clicking on the "Look at on server" button, it opens a new window (where no file is displaied) and I receive the alert error <cite>"XML Request Error:(0)"</cite>.
It comes from the fckxml.js but I've not idea about it.

I've tried to change the configuration too (php connector for example) but
<p>
<ol type="a">
<li> I'm not sure that the new configuration has loaded: in fact I don't understand where is loaded the file fckconfig.js (into fckeditor.js it isn't called).
<li> I didn't understand where and how to change the starting path for the FileManager.
<li> Miscellanea: the path of fckeditor.js into sample01.html is "../../fckeditor.js". If I create an myconfig.js and I put it in the same folder of fckeditor.js and I write oFCKeditor.Config['CustomConfigurationsPath'] = '../../myconfig.js' ;
before
oFCKeditor.create();
the editor isn't loaded (while it's loaded if I write the path without the first dot i.e. ./../myconfig.js).
</ol>
</p>
The most important problem is relative to the images...

Thank you