I get an error when trying to browse the server picking a pi

Hi there
I have added the FCK editor to my page and it all works just fine. But when I press the "Browse server" button to pick the image I get this error:
"The server didn't send back a proper XML response. Please contact your administrator

XML request error: OK(200)
Requested URL:
http://localhost:12345/fckeditor/filema ... rs/php/....
"
And a large php script. Problem is that I'm not using PHP. This is an ASP.NET site. How do I tell the editor to use ASP.net? Its strange actually because I am using the .NET 2.0 versjon as a component. Shouldnt this set all this settings correct?


Please help...